预测未来的最好方法就是创造未来。不要担心别人会做什么。预测未来的最好方法就是创造未来。

——在柏林墙演说

To lose one parent may be regarded as a misfortune; to lose both looks like carelessness.

The causal model is the key to making sense of the world.

You don’t have to have it all figured out to move forward. Just take the next step.

Words dazzle and deceive because they are mimed by the face.But black words on a white page are the soul laid bare.

文字是唯一永恒的东西；其他一切都会消亡。