The more you sweat in peace, the less you bleed in war.

The past is a source of knowledge, and the future is a source of hope. Love of the past implies faith in the future.

被宽恕只是礼物的一半，另一半是我们也能宽恕。

You must not think that what is hard for you to master is humanly impossible； and if it is humanly possible， consider it to be within your reach.

选自汉·桓宽《盐铁论·相刺》。橘柚生长于江南，各地的人吃起来都有甜的感觉，这是因为大家的味觉是相同的；郑国卫国的音乐，大家都觉得好听，那是因为大家对声音效果的感受是相同的。这句话以吃橘柚的感觉与听音乐的感受为喻，说明是非好坏的标准是客观存在的，人类社会的价值认同大体是相同的。

"Writing is the closest thing we have to real magic."

The power of computation is not just in solving problems, but in the elegance and efficiency with which it does so.