The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
Technology is transforming coal mining from a brute force industry to a precision operation.
Every problem in mathematics is a puzzle waiting to be solved, and the joy is in the solving.
她变成了她自己，每天都在抛弃我们想象中的自我，而这种自我就像一件衣服，我们可以穿着它出现在世界面前。