"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."
希望是黑暗中的一束光。
The peculiar evil of silencing the expression of an opinion is that it is robbing the human race； posterity as well as the existing generation； those who dissent from the opinion， still more than those who hold it.
数学的美在于它能够以最简单的术语描述宇宙。
You cannot escape your freedom.