科学是人类理解和改造世界的最有力工具。
Science is the most powerful tool for human beings to understand and transform the world.
To be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others.
The problem with socialism is that you eventually run out of other people's money.
我是在书本上而不是在课堂上认识伟大的知识分子的，这很自然。我的家人都喜欢这些东西，通过纪律、知识和自我控制来出人头地。
我不喜欢赌博，但如果有一样东西我愿意押注，那就是我自己。
我追随着自然，却始终无法抓住她...