痛苦的秘诀在于有空闲去烦恼自己是否幸福。

If you're not doing anything wrong, you have nothing to hide.

Life is what happens when you're busy making other plans.

A managed forest is like a symphony—every tree plays its part at the right time.

我认为这是写作中最重要的单一事情：它使熟悉的事物变得陌生，使陌生的事物变得熟悉。

创新不仅仅是创造新产品；而是重新思考如何利用资源产生持久的影响。