A great biography is a kind of pilgrimage, walking in someone else’s footsteps while trying to understand their soul.

长期来看，市场是一台称重机，但短期来看，它是一台投票机。

The only person who is educated is the one who has learned how to learn and change.

Every person is a lonely island.

Pleasures， then， and the avoidance of pains， are the ends that the legislator has in view.

Sustainability isn’t a trend—it’s a responsibility we owe to future generations.

译文：问题刚冒头时解决很容易，等到严重了再补救就难了。

The principles of conditioning apply equally to all species.