快乐不是现成的东西。它来自你自己的行动。

"Your most unhappy customers are your greatest source of learning."

"History is not just what happened, but what we remember and how we remember it."

"I think children are naturally curious and open to new ideas, and that's something I try to capture in my books."

行业领导者与当地社区之间的合作能创造最强大的森林管理解决方案。

我不是一个放弃真相的人。

The real art of conversation is not only to say the right thing at the right place but to leave unsaid the wrong thing at the tempting moment.