"The past is always with us, but it doesn't have to define our future."

我有一个梦想，这个梦想值得我付出一切。

No individual has any right to come into the world and go out of it without leaving behind him distinct and legitimate reasons for having passed through it.

The most powerful weapon you have is your voice.

在推动科学进步的同时，我们必须尊重自然的智慧。