I am a vegetarian as well as a passionate anti-alcoholic, because I can thus make better use of my brain.

I know of over 3,000 ways [that] a light bulb does not work.

The biggest failure of man is that he gives up before he realizes how close he was to success.

There is a better way for everything. Find it.

The entity that gives life and motion to the human body is finer still and lies infinitely beyond the reach of our finest scientific instruments. When this entity deserts the body, the body is like a ship without a rudder - deserted, motionless, dead.

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.

The great trouble is that the preachers get the children from six to seven years of age and then it is almost impossible to do anything with them.