I think that kids have a greater capacity for processing things than we give them credit for.

When you know better you do better.

Physics is like sex: sure, it may give some practical results, but that's not why we do it.

No power and no treasure can outweigh the extension of our knowledge.

To read is to fly: it is to soar to a point of vantage which gives a view over wide terrains of history, human variety, ideas, shared experience and the fruits of many inquiries.

Real knowledge is to know the extent of one's ignorance.

It is possible to fly without motors, but not without knowledge and skill.

Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.

The reading of all good books is like conversation with the finest men of past centuries.

The delight of opening a new pursuit, or a new course of reading, imparts the vivacity and novelty of youth even to old age.

If one cannot enjoy reading a book over and over again, there is no use in reading it at all.

Dare to think for yourself.

Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.

Just when I thought there wasn't room enough for another thought in my head, I had this great idea.

Real learning comes about when the competitive spirit has ceased.

Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.

It isn't what we don't know that gives us trouble, it's what we know that ain't so.

A spirit of national masochism prevails, encouraged by an effete corps of impudent snobs who characterize themselves as intellectuals.

A man who has never gone to school may steal a freight car; but if he has a university education, he may steal the whole railroad.

The highest activity a human being can attain is learning for understanding, because to understand is to be free.

If help and salvation are to come, they can only come from the children, for the children are the makers of men.