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Galileo Galilei
: In questions of science the authority of a thousand is not worth the humble reasoning of a single individual.
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Galileo Galilei quote-In questions of science the authority of a thousand is not worth the...
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X2 X-Men United :
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Jean Grey Mutation. It is the key to our evolution. It has enabled us to evolve from a single-celled organism into the dominant species on the planet. This process is slow and normally taking thousands and thousands of years. But every few hundred millennia, evolution leaps forward.
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Francis Quarles :
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If thou desire the love of God and man, be humble, for the proud heart, as it loves none but itself, is beloved of none but itself. Humility enforces where neither virtue, nor strength, nor reason can prevail.
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Timothy Leary :
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Think for yourself and question authority.
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Johann Wolfgang von Goethe :
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If you want a wise answer, ask a reasonable question.
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126
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Allard Kenneth Lowenstein Lowenstein :
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The question should be, is it worth trying to do, not can it be done.
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Arthur C Clarke :
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I don't pretend we have all the answers. But the questions are certainly worth thinking about..
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Nicolaus Copernicus :
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The nationality question has been a subject of various writings; an honoring controversy over the claim to the founder of our current world view is conducted between Poles and Germans, but as already mentioned nothing certain can be determined concerning the nationality of Copernicus' parents; the father seems to have been of Slavic birth, the mother German; he was born in a city whose municipal authorities and educated inhabitants were Germans, but which at the time of his birth was under Polish rule; he studied at the Polish capital, Krakau, then in Italy, and lived out his days as a canon in Frauenburg; he wrote Latin and German. In science, he is a man who belongs to no single nation, whose labors and strivings belong to the whole world, and in C. we do not honor the Pole nor the German, but the man of free spirit, the great astronomer, the father of the new astronomy, the originator of the true Weltanschauung (world view).
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Stephen Jay Gould :
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All interesting issues in natural history are questions of relative frequency, not single examples. Everything happens once amidst the richness of nature. But when an unanticipated phenomenon occurs again and again—finally turning into an expectation—then theories are overturned.
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Thomas Jefferson :
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Question with boldness even the existence of a God; because, if there be one, he must more approve of the homage of reason, than that of blind-folded fear.
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Noam Chomsky :
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As soon as questions of will or decision or reason or choice of action arise, human science is at a loss.
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Galileo Galilei Wisdom feed
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Galileo Galilei:
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All truths are easy to understand once they are discovered the point is to discover them.
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Galileo Galilei:
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You cannot teach a man anything; you can only help him find it within himself.
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Galileo Galilei:
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I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use.
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Galileo Galilei:
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Doubt is the father of invention.
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Galileo Galilei:
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Wine is "light held together by moisture."
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Galileo Galilei:
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I cannot without great wonder, nay more, disbelief, hear it being attributed to natural bodies as a great honor and perfection that they are impassable, immutable, inalterable, etc.: as conversely, I hear it esteemed a great imperfection to be alterable, generable, and mutable. It is my opinion that the earth is very noble and admirable by reason of the many and different alterations, mutations, and generations which incessantly occur in it. And if, without being subject to any alteration, it had been one great heap of sand, or a mass of jade, or if, since the time of the deluge, the waters freezing which covered it, it had continued an immense globe of crystal, wherein nothing had ever grown, altered, or changed, I should have esteemed it a wretched lump of no benefit to the Universe, a mass of idleness, and in a word superfluous, exactly as if it had never been in Nature. The difference for me would be the same as between a living and a dead creature. I say the same concerning the Moon, Jupiter, and all the other globes of the Universe. The more I delve into the consideration of the vanity of popular discourses, the more empty and simple I find them. What greater folly can be imagined than to call gems, silver, and gold noble, and earth and dirt base? For do not these persons consider that if there were as great a scarcity of earth as there is of jewels and precious metals, there would be no king who would not gladly give a heap of diamonds and rubies and many ingots of gold to purchase only so much earth as would suffice to plant a jessamine in a little pot or to set a tangerine in it, that he might see it sprout, grow up, and bring forth such goodly leaves, fragrant flowers, and delicate fruit? It is scarcity and plenty that makes things esteemed and despised by the vulgar, who will say that there is a most beautiful diamond, for it resembles a clear water, and yet would not part from it for ten tons of water. These men who so extol incorruptibility, inalterability, and so on, speak thus, I believe, out of the great desire they have to live long and for fear of death, not considering that, if men had been immortal, they would not have come into the world. These people deserve to meet with a Medusa's head that would transform them into statues of diamond and jade, that so they might become more perfect than they are.
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Galileo Galilei:
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It now remains that we find the amount of time of descent through the channel. This we shall obtain from the marvelous property of the pendulum, which is that it makes all its vibrations, large or small, in equal times. This requires, once and for all, that two or three or four patient and curious friends, having noted a fixed star that stands against some fixed marker, taking a pendulum of any length, shall go counting its vibrations during the whole time of return of the fixed star to its original point, and this will be the number of vibrations in 24 hours. From the number of these we can find the number of vibrations of any other pendulums, longer or shorter, at will, so that if for example those counted by us in 24 hours were 234,567, then taking another shorter pendulum with which one counts 800 vibrations while another counts 150 of the longer pendulum, we already have, by the golden rule, the number of vibrations for the whole time of 24 hours; and if we want to know the time of descent through the channel, we can easily find not only the minutes, seconds, and sixtieths of seconds, but beyond that as we please. It is true that we can pass a more exact measure by having observed the flow of water through a thin passage, for by collecting this and having weighed what passes in one minute, for example, then by weighing what passes in the time of descent through the channel we can find the most exact measure and quantity of this time, especially by making use of a balance so precise as to weigh one sixtieth of a grain.
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Galileo Galilei:
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(speaking as Salviati)...In the long run my observations have convinced me that some men, reasoning preposterously, first establish some conclusion in their minds which, either because of its being their own or because of their having received it from some person who has their entire confidence, impresses them so deeply that one finds it impossible ever to get it out of their heads. Such arguments in support of their fixed idea as they hit upon themselves or hear set forth by others, no matter how simple and stupid these may be, gain their instant acceptance and applause. On the other hand whatever is brought forward against it, however ingenious and conclusive, they receive with disdain or with hot rage--if indeed it does not make them ill. Beside themselves with passion, some of them would not be backward even about scheming to suppress and silence their adversaries. (translated by Stillman Drake, 2001 Modern Library Paperback Edition, p. 322).
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Galileo Galilei:
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Whence do you have it that the terrestrial globe is so heavy? For my part, either I do not know what heaviness is, or the terrestrial globe is neither heavy nor light, as likewise all other globes of the universe. Heaviness to me (and I believe to Nature) is that innate tendency by which a body resists being moved from its natural place and by which, when forcibly removed therefrom, it spontaneously returns there. Thus a bucketful of water raised on high and set free, returns to the sea; but who will say that the same water remains heavy in the sea, when being set free there, does not move?
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Galileo Galilei:
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It has always seemed to me extreme presumptuousness on the part of those who want to make human ability the measure of what nature can and knows how to do, since, when one comes down to it, there is not one effect in nature, no matter how small, that eve
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![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=83555&author=Galileo Galilei"e=In+questions+of+science+the+authority+of+a+thousand+is+not+worth+the+humble+reasoning+of+a+single+individual.&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F2773%2FGalileo_Galilei_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=47194&author=X2 X-Men United"e=Jean+Grey+Mutation.+It+is+the+key+to+our+evolution.+It+has+enabled+us+to+evolve+from+a+single-celled+organism+into+the+dominant+species+on+the+planet.+This+process+is+slow+and+normally+taking+thousands+and+thousands+of+years.+But+every+few+hundred+millennia%2C+evolution+leaps+forward.&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F8135%2FX2+X-Men_United_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=11292&author=Francis Quarles"e=++If+thou+desire+the+love+of+God+and+man%2C+be+humble%2C+for+the+proud+heart%2C+as+it+loves+none+but+itself%2C+is+beloved+of+none+but+itself.+Humility+enforces+where+neither+virtue%2C+nor+strength%2C+nor+reason+can+prevail.&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F632%2FFrancis+Quarles_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=94565&author=Timothy Leary"e=Think+for+yourself+and+question+authority.%0A&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F992%2FTimothy_Leary_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=26460&author=Johann Wolfgang von Goethe"e=++If+you+want+a+wise+answer%2C+ask+a+reasonable+question.&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F10723%2FJohann+Wolfgang+von+Goethe_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=62362&author=Allard Kenneth Lowenstein Lowenstein"e=The+question+should+be%2C+is+it+worth+trying+to+do%2C+not+can+it+be+done.&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F12500%2FAllard+Kenneth+Lowenstein_Lowenstein_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=76133&author=Arthur C Clarke"e=I+don%27t+pretend+we+have+all+the+answers.+But+the+questions+are+certainly+worth+thinking+about..%0A&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F8253%2FArthur+C_Clarke_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=77286&author=Nicolaus Copernicus"e=The+nationality+question+has+been+a+subject+of+various+writings%3B+an+honoring+controversy+over+the+claim+to+the+founder+of+our+current+world+view+is+conducted+between+Poles+and+Germans%2C+but+as+already+mentioned+nothing+certain+can+be+determined+concerning+the+nationality+of+Copernicus%27+parents%3B+the+father+seems+to+have+been+of+Slavic+birth%2C+the+mother+German%3B+he+was+born+in+a+city+whose+municipal+authorities+and+educated+inhabitants+were+Germans%2C+but+which+at+the+time+of+his+birth+was+under+Polish+rule%3B+he+studied+at+the+Polish+capital%2C+Krakau%2C+then+in+Italy%2C+and+lived+out+his+days+as+a+canon+in+Frauenburg%3B+he+wrote+Latin+and+German.+In+science%2C+he+is+a+man+who+belongs+to+no+single+nation%2C+whose+labors+and+strivings+belong+to+the+whole+world%2C+and+in+C.+we+do+not+honor+the+Pole+nor+the+German%2C+but+the+man+of+free+spirit%2C+the+great+astronomer%2C+the+father+of+the+new+astronomy%2C+the+originator+of+the+true+Weltanschauung+%28world+view%29.%0A&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F13678%2FNicolaus+Copernicus_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=85195&author=Stephen Jay Gould"e=All+interesting+issues+in+natural+history+are+questions+of+relative+frequency%2C+not+single+examples.+Everything+happens+once+amidst+the+richness+of+nature.+But+when+an+unanticipated+phenomenon+occurs+again+and+again%E2%80%94finally+turning+into+an+expectation%E2%80%94then+theories+are+overturned.%0A&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F9242%2FStephen+Jay_Gould_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=26465&author=Thomas Jefferson"e=++Question+with+boldness+even+the+existence+of+a+God%3B+because%2C+if+there+be+one%2C+he+must+more+approve+of+the+homage+of+reason%2C+than+that+of+blind-folded+fear.&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F458%2FThomas+Jefferson_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=51935&author=Noam Chomsky"e=As+soon+as+questions+of+will+or+decision+or+reason+or+choice+of+action+arise%2C+human+science+is+at+a+loss.&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F19%2FNoam+Chomsky_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=49343&author=Galileo Galilei"e=All+truths+are+easy+to+understand+once+they+are+discovered+the+point+is+to+discover+them.&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F2773%2FGalileo_Galilei_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=34203&author=Galileo Galilei"e=++You+cannot+teach+a+man+anything%3B+you+can+only+help+him+find+it+within+himself.&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F2773%2FGalileo_Galilei_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=49341&author=Galileo Galilei"e=I+do+not+feel+obliged+to+believe+that+the+same+God+who+has+endowed+us+with+sense%2C+reason%2C+and+intellect+has+intended+us+to+forgo+their+use.&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F2773%2FGalileo_Galilei_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=2122&author=Galileo Galilei"e=++Doubt+is+the+father+of+invention.&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F2773%2FGalileo_Galilei_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=83560&author=Galileo Galilei"e=Wine+is+%22light+held+together+by+moisture.%22&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F2773%2FGalileo_Galilei_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=83549&author=Galileo Galilei"e=I+cannot+without+great+wonder%2C+nay+more%2C+disbelief%2C+hear+it+being+attributed+to+natural+bodies+as+a+great+honor+and+perfection+that+they+are+impassable%2C+immutable%2C+inalterable%2C+etc.%3A+as+conversely%2C+I+hear+it+esteemed+a+great+imperfection+to+be+alterable%2C+generable%2C+and+mutable.+It+is+my+opinion+that+the+earth+is+very+noble+and+admirable+by+reason+of+the+many+and+different+alterations%2C+mutations%2C+and+generations+which+incessantly+occur+in+it.+And+if%2C+without+being+subject+to+any+alteration%2C+it+had+been+one+great+heap+of+sand%2C+or+a+mass+of+jade%2C+or+if%2C+since+the+time+of+the+deluge%2C+the+waters+freezing+which+covered+it%2C+it+had+continued+an+immense+globe+of+crystal%2C+wherein+nothing+had+ever+grown%2C+altered%2C+or+changed%2C+I+should+have+esteemed+it+a+wretched+lump+of+no+benefit+to+the+Universe%2C+a+mass+of+idleness%2C+and+in+a+word+superfluous%2C+exactly+as+if+it+had+never+been+in+Nature.+The+difference+for+me+would+be+the+same+as+between+a+living+and+a+dead+creature.+I+say+the+same+concerning+the+Moon%2C+Jupiter%2C+and+all+the+other+globes+of+the+Universe.+The+more+I+delve+into+the+consideration+of+the+vanity+of+popular+discourses%2C+the+more+empty+and+simple+I+find+them.+What+greater+folly+can+be+imagined+than+to+call+gems%2C+silver%2C+and+gold+noble%2C+and+earth+and+dirt+base%3F+For+do+not+these+persons+consider+that+if+there+were+as+great+a+scarcity+of+earth+as+there+is+of+jewels+and+precious+metals%2C+there+would+be+no+king+who+would+not+gladly+give+a+heap+of+diamonds+and+rubies+and+many+ingots+of+gold+to+purchase+only+so+much+earth+as+would+suffice+to+plant+a+jessamine+in+a+little+pot+or+to+set+a+tangerine+in+it%2C+that+he+might+see+it+sprout%2C+grow+up%2C+and+bring+forth+such+goodly+leaves%2C+fragrant+flowers%2C+and+delicate+fruit%3F+It+is+scarcity+and+plenty+that+makes+things+esteemed+and+despised+by+the+vulgar%2C+who+will+say+that+there+is+a+most+beautiful+diamond%2C+for+it+resembles+a+clear+water%2C+and+yet+would+not+part+from+it+for+ten+tons+of+water.+These+men+who+so+extol+incorruptibility%2C+inalterability%2C+and+so+on%2C+speak+thus%2C+I+believe%2C+out+of+the+great+desire+they+have+to+live+long+and+for+fear+of+death%2C+not+considering+that%2C+if+men+had+been+immortal%2C+they+would+not+have+come+into+the+world.+These+people+deserve+to+meet+with+a+Medusa%27s+head+that+would+transform+them+into+statues+of+diamond+and+jade%2C+that+so+they+might+become+more+perfect+than+they+are.&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F2773%2FGalileo_Galilei_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=83543&author=Galileo Galilei"e=It+now+remains+that+we+find+the+amount+of+time+of+descent+through+the+channel.+This+we+shall+obtain+from+the+marvelous+property+of+the+pendulum%2C+which+is+that+it+makes+all+its+vibrations%2C+large+or+small%2C+in+equal+times.+This+requires%2C+once+and+for+all%2C+that+two+or+three+or+four+patient+and+curious+friends%2C+having+noted+a+fixed+star+that+stands+against+some+fixed+marker%2C+taking+a+pendulum+of+any+length%2C+shall+go+counting+its+vibrations+during+the+whole+time+of+return+of+the+fixed+star+to+its+original+point%2C+and+this+will+be+the+number+of+vibrations+in+24+hours.+From+the+number+of+these+we+can+find+the+number+of+vibrations+of+any+other+pendulums%2C+longer+or+shorter%2C+at+will%2C+so+that+if+for+example+those+counted+by+us+in+24+hours+were+234%2C567%2C+then+taking+another+shorter+pendulum+with+which+one+counts+800+vibrations+while+another+counts+150+of+the+longer+pendulum%2C+we+already+have%2C+by+the+golden+rule%2C+the+number+of+vibrations+for+the+whole+time+of+24+hours%3B+and+if+we+want+to+know+the+time+of+descent+through+the+channel%2C+we+can+easily+find+not+only+the+minutes%2C+seconds%2C+and+sixtieths+of+seconds%2C+but+beyond+that+as+we+please.+It+is+true+that+we+can+pass+a+more+exact+measure+by+having+observed+the+flow+of+water+through+a+thin+passage%2C+for+by+collecting+this+and+having+weighed+what+passes+in+one+minute%2C+for+example%2C+then+by+weighing+what+passes+in+the+time+of+descent+through+the+channel+we+can+find+the+most+exact+measure+and+quantity+of+this+time%2C+especially+by+making+use+of+a+balance+so+precise+as+to+weigh+one+sixtieth+of+a+grain.&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F2773%2FGalileo_Galilei_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=83550&author=Galileo Galilei"e=%28speaking+as+Salviati%29...In+the+long+run+my+observations+have+convinced+me+that+some+men%2C+reasoning+preposterously%2C+first+establish+some+conclusion+in+their+minds+which%2C+either+because+of+its+being+their+own+or+because+of+their+having+received+it+from+some+person+who+has+their+entire+confidence%2C+impresses+them+so+deeply+that+one+finds+it+impossible+ever+to+get+it+out+of+their+heads.+Such+arguments+in+support+of+their+fixed+idea+as+they+hit+upon+themselves+or+hear+set+forth+by+others%2C+no+matter+how+simple+and+stupid+these+may+be%2C+gain+their+instant+acceptance+and+applause.+On+the+other+hand+whatever+is+brought+forward+against+it%2C+however+ingenious+and+conclusive%2C+they+receive+with+disdain+or+with+hot+rage--if+indeed+it+does+not+make+them+ill.+Beside+themselves+with+passion%2C+some+of+them+would+not+be+backward+even+about+scheming+to+suppress+and+silence+their+adversaries.+%28translated+by+Stillman+Drake%2C+2001+Modern+Library+Paperback+Edition%2C+p.+322%29.&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F2773%2FGalileo_Galilei_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=83541&author=Galileo Galilei"e=Whence+do+you+have+it+that+the+terrestrial+globe+is+so+heavy%3F+For+my+part%2C+either+I+do+not+know+what+heaviness+is%2C+or+the+terrestrial+globe+is+neither+heavy+nor+light%2C+as+likewise+all+other+globes+of+the+universe.+Heaviness+to+me+%28and+I+believe+to+Nature%29+is+that+innate+tendency+by+which+a+body+resists+being+moved+from+its+natural+place+and+by+which%2C+when+forcibly+removed+therefrom%2C+it+spontaneously+returns+there.+Thus+a+bucketful+of+water+raised+on+high+and+set+free%2C+returns+to+the+sea%3B+but+who+will+say+that+the+same+water+remains+heavy+in+the+sea%2C+when+being+set+free+there%2C+does+not+move%3F&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F2773%2FGalileo_Galilei_64x64.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=49342&author=Galileo Galilei"e=It+has+always+seemed+to+me+extreme+presumptuousness+on+the+part+of+those+who+want+to+make+human+ability+the+measure+of+what+nature+can+and+knows+how+to+do%2C+since%2C+when+one+comes+down+to+it%2C+there+is+not+one+effect+in+nature%2C+no+matter+how+small%2C+that+eve&image=http%3A%2F%2Fwww.iwise.com%2FauthorIcons%2F2773%2FGalileo_Galilei_64x64.png){kind=link}