处于逆境，思想要开拓放达，奋发图强；处于顺境，思想要警觉收敛，约束自身。

I don't think about limitations. I think about possibilities.

知识只有在应用时才有用。

防止变老的最佳实践是保持惊讶。

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.