社会系统是个人与个人之间、群体与群体之间关系的网络。

Sustainable fishing isn't an option—it's the only way forward.

Understanding the computational complexity of learning problems is essential for developing efficient algorithms.

强求不得，顺其自然。

Don't let the noise of others' opinions drown out your own inner voice.

I always did something I was a little not ready to do. I think that’s how you grow.

团结不是慈善，而是对我们共同人性的认可。