We must build a world in which there shall be no economic domination.

The only real freedom is the freedom to imagine.

I don’t dream of success, I work for it.

告诉我动机，我会告诉你结果。

To be happy is only to have freed one's soul from the unrest of unhappiness.

No matter what he does, every person on earth plays a central role in the history of the world. And normally he doesn't know it.

我似乎总是想以最节能的方式，用自然界里最平常的东西来造各种东西。

When we are no longer able to change a situation, we are challenged to change ourselves.

A throw of the dice will never abolish chance.