Human beings, viewed as behaving systems, are quite simple. The apparent complexity of our behavior over time is largely a reflection of the complexity of the environment in which we find ourselves.

The best investments are those that align profitability with purpose.

I think of a hero as someone who understands the degree of responsibility that comes with his freedom.

We do not own our memories; they own us.

The past is not dead. It is not even past.

The great powers are always searching for opportunities to gain power at the expense of their rivals, and they will use force if they believe it will bring them strategic advantage.

大爆炸不是一切的开始，而是我们可观测宇宙的开始。

The thing about happiness is that you only know you had it when it's gone.