真相很少是纯粹的，也从来不是简单的。

我不是因为快乐而唱歌；我因为唱歌而快乐。

The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.

Seems right now, that all I have done in my life was making my way here to you.

南开校训，意为培养公正与能力兼备的人才，追求不断创新。

想象力只是模仿，批判精神才能创造。