No one will protect what they don't care about, and no one will care about what they have never experienced.

We are stubborn on vision. We are flexible on details.

革命者可以失去一切：家庭、自由，甚至生命。但不能失去道德。

The true poet is a man who is always in love with life.

The best programs are written so that computing machines can perform them quickly and so that human beings can understand them clearly. A programmer is ideally an essayist who works with traditional aesthetic and literary forms as well as mathematical concepts, to communicate the way that an algorithm works and to convince a reader that the results will be correct.