When I held you in my arms at your baptism, I wanted it to be a fresh start, for you to be more complete than we had ever been ourselves, but I wonder if we expected too much.
Don't lie if you don't have to.
For most of human history we have searched for our place in the cosmos. Who are we? What are we? We find that we inhabit an insignificant planet of a hum-drum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people. This perspective is a courageous continuation of our penchant for constructing and testing mental models of the skies; the Sun as a red-hot stone, the stars as a celestial flame, the Galaxy as the backbone of night.
Carl Edward Sagan
Today's science is tomorrow's technology.
How on earth are you ever going to explain in terms of chemistry and physics so important a biological phenomenon as first love?
If we fight a war and win it with H-bombs, what history will remember is not the ideals we were fighting for but the methods we used to accomplish them. These methods will be compared to the warfare of Genghis Khan who ruthlessly killed every last inhabitant of Persia.
Hans A Bethe
Stop telling God what to do with his dice.
It would appear that we have reached the limits of what it is possible to achieve with computer technology, although one should be careful with such statements, as they tend to sound pretty silly in 5 years.
John von Neumann
I can calculate the motion of heavenly bodies, but not the madness of people.
Sir Isaac Newton
I want to know the truth, however perverted that may sound.
Telling the future by looking at the past assumes that conditions remain constant. This is like driving a car by looking in the rearview mirror.
I cannot join the space program and restart my life as an astronaut, but this opportunity to connect my abilities as an educator with my interests in history and space is a unique opportunity to fulfill my early fantasies.
If you know you are on the right track, if you have this inner knowledge, then nobody can turn you off... Regardless of what they say.