If a fellow wants to be nobody in the business world, let him neglect sending the mailman to somebody on his behalf.

We work day after day, not to finish things; but to make the future better ... because we will spend the rest of our lives there.

A research problem is not solved by apparatus; it is solved in a man's head.

High achievement always takes place in the framework of high expectation.

Every great improvement has come after repeated failures. Virtually nothing comes out right the first time. Failures, repeated failures, are finger posts on the road to achievement. One fails forward toward success.

The typical eye sees the ten per cent bad of an idea and overlooks the ninety per cent good.

The price of progress is trouble.