每本书都是一次旅程，每次旅程都是一本书。

The causal approach is about understanding the mechanisms that generate the data.

The dairy industry must evolve to meet both consumer demands and environmental responsibilities.

Legal rules are not merely predictions of what courts will do, but are reasons for action.

The right of nature... is the liberty each man hath, to use his own power, as he will himself, for the preservation of his own nature; that is to say, of his own life.

穷人不是需要解决的问题，而是需要拥抱的机会。