真相很少是纯粹的，也从来不简单。

The novel is a lie that tells the truth, a lie that reveals reality more profoundly than the factual truth.

可持续林业不是成本，而是对我们未来的投资。

The essence of causal inference is to go beyond the data and ask what would happen if we intervene.

生命之所以有意义是因为它会停止。