I try not to invent things that people don't need.

This problem, once solved, will be simple.

To do much clear thinking a person must arrange for regular periods of solitude when they can concentrate and indulge the imagination without distraction.

Many of life's failures are people who did not realize how close they were to success when they gave up.

The secret of success is focus of purpose.

The very first thing an executive must have is a fine memory. Of course it does not follow that a man with a fine memory is necessarily a fine executive. But if he has the memory he has the first qualification, and if he has not the memory nothing else matters.

An idea is something that won't work unless you do.