Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young. The greatest thing in life is to keep your mind young.

Money doesn't change men. It merely unmasks them.

Thinking is hard work, which is why so few people do it.

Any man can learn anything he will, but no man can teach except to those who want to learn.

Understand the difference between being at work and working.

To lift farm drudgery off flesh and blood and lay it on steel and motors has been my most constant ambition

As we serve our jobs we serve the world.