A woman can become a man’s friend only in the absence of passion between them.

The only paradise is paradise lost.

在谷物生产中，耐心不仅是一种美德，更是必需品。

我们说的每一个词都承载着我们的历史和未来的希望。

Words are the only bullets some of us have.

The challenge is not just to give people money but to understand how they make decisions under constraints.

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.