Understanding is a kind of ecstasy

I consider it an extremely dangerous doctrine, because the more likely we are to assume that the solution comes from the outside, the less likely we are to solve our problems ourselves.

One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time.

Books tap the wisdom of our species -- the greatest minds, the best teachers -- from all over the world and from all our history. And they're patient.

In exchange for freedom of inquiry, scientists are obliged to explain their work.

There are lots of ways to communicate what we know, but few ways to communicate what we feel. Music is one way to communicate emotions.

We can always take but never give.