Every saint has a past, and every sinner has a future.

理论物理学是一种形而上学。

My past doesn't define me.

In the infancy of societies, the chiefs of state shape its institutions; later the institutions shape the chiefs of state.

回忆就像影子 - 它们无处不在跟着你，即使在没有光的时候。

The true value of a forest isn’t just in its timber, but in its ability to sustain life.

自由在于勇敢。