这个世界极其危险、不可信任、不可靠。

You are not only responsible for what you say, but also for what you do not say.

译文：应该将亲近好厌恶等情绪一并抛弃，才能成功地使用权谋之术。

我不完美，但我正在努力。

To be a father is to be condemned to watch your child grow up.

Abstraction is the key to mathematics.

The signal of human influence on climate has emerged from the noise of natural variability.