林业的创新不仅仅是技术，更是思维方式的转变。

I'm very proud to be black, but black is not all I am. That's my cultural historical background, my genetic makeup, but it's not all of who I am nor is it the basis from which I answer every question.

除非不再尝试，否则就没有失败。

That's because most jokes are lies, and you're single - minded in your pursuit of the truth.

世界上有很多好人。如果你找不到一个，那就成为一个。