The most important advance in the next fifty years will be in the realm of the spiritual - dealing with the spirit of thought.

Electricity is doing for the distribution of energy what the railroads have done for the distribution of materials.

No man really becomes a fool until he stops asking questions.

I have succeeded in getting my actual work down to thirty minutes a day. That leaves me eighteen hours for engineering.

The most important advance in the next fifty years will be in the realm of the spiritual - dealing with the spirit of thought.

Money is a stupid measure of achievement, but unfortunately it is the only universal measure we have.

Spiritual power is a force which history clearly teaches has been the greatest force in the development of men. Ye. we have been merely playing with it and never have really studied it as we have the physical forces. Some day people will learn that material things do not bring happiness, and are of little use in making people creative and powerful. Then the scientists of the world will turn their laboratories over to the study of spiritual forces which have hardly been scratched.