There is much more opportunity than there are people to see it.

The most necessary task of civilization is to teach people how to think. It should be the primary purpose of our public schools. The mind of a child is naturally active, it develops through exercise. Give a child plenty of exercise, for body and brain. The trouble with our way of educating is that it does not give elasticity to the mind. It casts the brain into a mold. It insists that the child must accept. It does not encourage original thought or reasoning, and it lays more stress on memory than observation.

When I have fully decided that a result is worth getting I go ahead of it and make trial after trial until it comes.

The best thinking has been done in solitude. The worst has been done in turmoil.

My mind is incapable of conceiving such a thing as a soul. I may be in error, and man may have a soul; but I simply do not believe it.

Before you reject an idea, find at least five good things about it.

Seeming to do is not doing.