Whatever humans have learned had to be learned as a consequence only of trial and error experience. Humans have learned only through mistakes.

The end move in politics is always to pick up a gun.

War is the ultimate tool of politics.

The word synergy comes from the Greek sin-ergo, meaning, to work together. It describes a mutually supportive atmosphere of trust, where each individual element works towards its own goals, and where the goals may be quite varied; nevertheless, because all elements of a synergetic system support one another, they also support the whole.

Our little Spaceship Earth is only eight thousand miles in diameter, which is almost a negligible dimension in the great vastness of space.... Spaceship Earth was so extraordinarily well invented and designed that to our knowledge humans have been on board it for two million years not even knowing that they were on board a ship.

There is no joy equal to that of being able to work for all humanity and doing what you're doing well.

Thinking is a momentary dismissal of irrelevancies.