The library connects us with the insight and knowledge, painfully extracted from Nature, of the greatest minds that ever were, with the best teachers, drawn from the entire planet and from all our history, to instruct us without tiring, and to inspire us to make our own contribution to the collective knowledge of the human species.

I think the discomfort that some people feel in going to the monkey cages at the zoo is a warning sign.

[Kepler] preferred the hard truth to his dearest illusions, and that is the heart of science.

When we look up at night and view the stars, everything we see is shinning because of distant nuclear fusion.

UFOs: The reliable cases are uninteresting and in the interesting cases are unreliable.

All colours are arbitrary.

Human beings grew up in forests; we have a natural affinity for them. How lovely a tree is, straining toward the sky.