A poor man is not the one without a cent. A poor man is the one without a dream.

You can't learn in school what the world is going to do next year.

He who believes he can and he who believes he cannot are both correct.

I am in exact accord with the belief of Thomas Edison that spirit is immortal, that there is a continuing center of character in each personality. But I don't know what spirit is, nor matter either. I suspect they are forms of the same thing. I never could see anything in this reputed antagonism between spirit and matter. To me this is the most beautiful, the most satisfactory from a scientific standpoint, the most logical theory of life.

The secret of success is to understand the viewpoint of others.

Time waste differs from material waste in that there can be no salvage. The easiest of all wastes and the hardest to correct is the waste of time, because wasted time does not litter the floor like wasted material.

Every business is a monarchy with, not a man, but an idea as king.