Never let an inventor run a company. You can never get him to stop tinkering and bring something to market.

You can either read something many times in order to be assured that you got it all, or else you can define your purpose and use techniques which will assure that you have met it and gotten what you need.

Eagles come in all shapes and sizes, but you will recognize them chiefly by their attitudes.

Call a thing immoral or ugly, soul-destroying or a degradation of man, a peril to the peace of the world or to the well-being of future generations; as long as you have not shown it to be ''uneconomic'' you have not really questioned its right to exist, grow, and prosper.

The heart of the matter, as I see it, is the stark fact that world poverty is primarily a problem of two million villages, and thus a problem of two thousand million villagers.

Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius - and a lot of courage - to move in the opposite direction.