You have to be willing to fail to succeed.

The goal of the future is full unemployment, so we can play. That's why we have to destroy the present politico-economic system.

质量不是头衔；它是一种行为。

宇宙不仅比我们想象的更奇怪，而且比我们能够想象的还要奇怪。

The most effective way to promote democracy is not through military intervention but through the slow and steady process of building institutions and promoting economic development.

民主不是旁观者的运动。它需要积极参与和对社会正义的承诺。