林业技术应该增强自然过程，而不是取代它们。

I'm not a perfect person, but I try to be better every day.

真正活着的唯一方式，就是甘愿为某些东西献出生命。

Challenges are what make life interesting and overcoming them is what makes life meaningful.

Greatness is not given, it’s earned.

我现在确信理论物理学实际上是哲学。

The world is a book, and those who do not travel read only one page.