I stand up for what I believe in and I don’t worry about what other people think.

Sustainability isn't an option anymore - it's our only path forward.

We teach a subject not to produce little living libraries on that subject, but rather to get a student to think mathematically for himself.

Life is short, and it’s up to you to make it sweet.

城市林业证明自然与城市可以共同繁荣。

男性和女性在繁殖策略上有所不同，因为他们在整个进化历史中面临着不同的适应性问题。