The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom.

Violence is the last refuge of the incompetent.

I don't believe in an afterlife, so I don't have to spend my whole life fearing hell, or fearing heaven even more. For whatever the tortures of hell, I think the boredom of heaven would be even worse.

The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' (I found it!) but 'That's funny ... '

Self-education is, I firmly believe, the only kind of education there is.

There seems to be a feeling that anything that is natural is good. Strychnine is natural.

Violence is the last refuge of the incompetent.

Surely no child, and few adults, have ever watched a bird in flight without envy.

If knowledge can create problems, it is not through ignorance that we can solve them.

We all know we fall. Newton's discovery was that the moon falls, too-and by the same rule that we do.