The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
The good life is not one immune to sadness, but one in which suffering contributes to our development.
The best investment you can make is in yourself.
The beauty of mathematics lies in its ability to describe the universe in the most elegant way possible.
自然界中没有线条,只有相互映衬的色彩区域。