可持续发展不仅仅是一个流行词，而是我们对后代的责任。

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 speech we hear is an indication of that which we don't hear.

最坚固的锁链是由恐惧而非钢铁制成的。