革命不是熟透的苹果，自己掉下来。你必须让它掉下来。

The biggest risk is not taking any risk... In a world that's changing really quickly, the only strategy that is guaranteed to fail is not taking risks.

The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all.

我们最高的努力必须是培养自由的人类，他们能够自己赋予生活目的和方向。