The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

我只希望在自己衰老前退休，否则我只会成为累赘。

"The immune system is like a double-edged sword; it can fight cancer but also needs to be controlled."

今天的过度捕捞意味着明天的空网。

新观点总是被怀疑和通常反对，原因只是因为它们尚未变得普遍。

没有什么是确定的，也没有什么是不可能的。

The only way to save a rhinoceros is to save the environment in which it lives, because there's a mutual dependency between it and millions of other species of both animals and plants.