I like what Abba Eban once said during the 1967 war. He said, "When all else fails, men turn to reason."

Ideas emerge when a part of the real or imagined world is studied for its own sake.

The true evolutionary epic, retold as poetry, is as intrinsically ennobling as any religious epic.

Science and technology are what we can do; morality is what we agree we should or should not do.

No one knows the diversity in the world, not even to the nearest order of magnitude. ... We don't know for sure how many species there are, where they can be found or how fast they're disappearing. It's like having astronomy without knowing where the stars are.

Go as far as you can, [young scientists]. The world needs you badly.

[T]he true natural sciences lock together in theory and evidence to form the ineradicable technical base of modern civilization. The pseudosciences satisfy personal psychological needs... but lack the ideas or the means to contribute to the technical base.