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Carl Edward Sagan |
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| Biography |
| Carl Edward Sagan, Ph.D. was an American astronomer, astrochemist, author, and highly successful popularizer of astronomy, astrophysics and other natural sciences. He pioneered exobiology and promoted the Search for Extra-Terrestrial Intelligence... |
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- Visit Dr. Mardy's iWise Blog
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![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=50111&author=Sagan"e=Imagination+will+often+carry+us+to+worlds+that+never+were.+But+without+it+we+go+nowhere.&image=http%3A%2F%2Fwww.iwise.com%2Fimages_web%2Fauthor_no_icon.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=107449&author=Sagan"e=For+small+creatures+such+as+we+the+vastness+is+bearable+only+through+love.&image=http%3A%2F%2Fwww.iwise.com%2Fimages_web%2Fauthor_no_icon.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=107450&author=Sagan"e=You+can%27t+convince+a+believer+of+anything%3B+for+their+belief+is+not+based+on+evidence%2C+it%27s+based+on+a+deep+seated+need+to+believe.%0A&image=http%3A%2F%2Fwww.iwise.com%2Fimages_web%2Fauthor_no_icon.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=57962&author=Sagan"e=The+universe+is+not+required+to+be+in+perfect+harmony+with+human+ambition.&image=http%3A%2F%2Fwww.iwise.com%2Fimages_web%2Fauthor_no_icon.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=107444&author=Sagan"e=Extraordinary+claims+require+extraordinary+evidence.&image=http%3A%2F%2Fwww.iwise.com%2Fimages_web%2Fauthor_no_icon.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=57961&author=Sagan"e=Skeptical+scrutiny+is+the+means%2C+in+both+science+and+religion%2C+by+which+deep+insights+can+be+winnowed+from+deep+nonsense.&image=http%3A%2F%2Fwww.iwise.com%2Fimages_web%2Fauthor_no_icon.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=107441&author=Sagan"e=Every+one+of+us+is+precious+in+the+cosmic+perspective.+If+a+human+disagrees+with+you%2C+let+him+live.+In+a+hundred+billion+galaxies%2C+you+will+not+find+another.%0A&image=http%3A%2F%2Fwww.iwise.com%2Fimages_web%2Fauthor_no_icon.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=50116&author=Sagan"e=A+celibate+clergy+is+an+especially+good+idea%2C+because+it+tends+to+suppress+any+hereditary+propensity+toward+fanaticism.&image=http%3A%2F%2Fwww.iwise.com%2Fimages_web%2Fauthor_no_icon.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=50113&author=Sagan"e=They+laughed+at+Einstein.+They+laughed+at+the+Wright+Brothers.+But+they+also+laughed+at+Bozo+the+Clown.&image=http%3A%2F%2Fwww.iwise.com%2Fimages_web%2Fauthor_no_icon.png){kind=link}
![Powerpoint](http://www.iwise.com/downloadPPT.php?quote_id=107434&author=Sagan"e=If+you+wish+to+make+an+apple+pie+from+scratch%2C+you+must+first+invent+the+universe.%0A&image=http%3A%2F%2Fwww.iwise.com%2Fimages_web%2Fauthor_no_icon.png){kind=link}