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.

Opportunity is missed by most people because it is dressed in overalls and looks like work.

To me, the idea and expectation that the day is slowly and surely coming when we will be able to honestly say we are our brother's keeper and not his oppressor is very beautiful .

Radio is just a fashion contrivance that will soon die out. It is obvious that there never will be invented a proper receiver!

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.

The world owes nothing to any man, but every man owes something to the world.

Having a vision for what you want is not enough...Vision without execution is hallucination