"We've arranged a civilization in which most crucial elements profoundly depend on science and technology. We have also arranged things so that almost no one understands science and technology. This is a prescription for disaster."
"If it can be destroyed by the truth, it deserves to be destroyed by the truth."
"Science is based on experiment, on a willingness to challenge old dogma, on an openness to see the universe as it really is. Accordingly, science sometimes requires courage - at the very least the courage to question the conventional wisdom."
"We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good."
"A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism."
"The way to find out about our place in the universe is by examining the universe and by examining ourselves - without preconceptions, with as unbiased a mind as we can muster."