译文：借鉴前代兴衰，考察当下得失。《通鉴》的写作宗旨，直指现实关怀。

But what is happiness except the simple harmony between a man and the life he leads?

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.

The thought 'I am the body' is ignorance.

Reality is always richer and more complex than fiction.