我们都是自己的监狱，自己的狱卒。

法律与道德的区别是法律哲学中的一个基本问题。

Sustainable fishing isn't an option—it's the only way forward if we want to preserve marine ecosystems.

"The universe is asymmetric and I am persuaded that life, as it is known to us, is a direct result of the asymmetry of the universe or of its indirect consequences."

繁荣的森林是成功的最终衡量标准。