For a long time the human instinct to understand was thwarted by facile religious explanations.

Widespread intellectual and moral docility may be convenient for leaders in the short term, but it is suicidal for nations in the long term. One of the criteria for national leadership should therefore be a talent for understanding, encouraging, and making constructive use of vigorous criticism.

What began in deadly competition has helped us to see that global cooperation is the essential precondition for our survival. Travel is broadening. It's time to hit the road again.

All civilizations become either spacefaring or extinct.

Maxwell's Equations have had a greater impact on human history than any ten presidents.

For a long time the human instinct to understand was thwarted by facile religious explanations.

Science is a way to call the bluff of those who only pretend to knowledge. It is a bulwark against mysticism, against superstition, against religion misapplied to where it has no business being.