Science can be introduced to children well or poorly. If poorly, children can be turned away from science; they can develop a lifelong antipathy; they will be in a far worse condition than if they had never been introduced to science at all.

He had read much, if one considers his long life; but his contemplation was much more than his reading. He was wont to say that if he had read as much as other men he should have known no more than other men.

The facts, gentlemen, and nothing but the facts, for careful eyes are narrowly watching.

If my doctor told me I had only six minutes to live, I wouldn't brood. I'd type a little faster.

Human beings sometimes find a kind of pleasure in nursing painful emotions, in blaming themselves without reason or even against reason.

Man's greatest asset is the unsettled mind.

Even as a youngster, though, I could not bring myself to believe that if knowledge presented danger, the solution was ignorance.