科学的进步不仅通过知识的积累来衡量,还通过提出新问题的能力来衡量。
We don't inherit the land from our ancestors; we borrow it from our children.
Certification standards are the compass for responsible forestry.
If you have no enemies, you're dead.
Every line I draw is a moral decision.
I’m not a guy that’s going to let my focus down.