Psychological theories must pass the test of practical experience.

The night is a great symphony, but the stars are its notes.

Profit should never come at the expense of the ocean's health.

Certification programs are more than stickers on wood products; they represent a promise to our planet.

The permanence of certain urban artifacts gives them the quality of monuments.

每一次失败都是通往成功的垫脚石，只要我们从中学习。

现实总是比小说更丰富、更复杂。