你能给别人的最伟大的礼物就是你的时间和关注。

选自汉·桓宽《盐铁论·申韩》。曲木，弯曲的木头。恶，厌恶、怕。绳，木匠用以裁曲取直的墨绳。奸邪，奸邪之人。正法，公正无私的法律。这句话以曲木畏直绳作类比，说明公正无私之法对奸邪之人的威慑作用。

The most important thing in a database is the data model. If you get the data model right, everything else will follow.

Everything that happens once can never happen again. But everything that happens twice will surely happen a third time.

On the path of science, there are no smooth roads to take; only those who are not afraid of hard work and climb the steep mountain paths have the hope of reaching the glorious summit.

True leadership is measured by the impact you have on others.

那些疯狂到认为自己能改变世界的人，往往真的改变了世界。