《三民主义·民族主义·第六讲》（1924年3月2日）

一个好的数学家是能看到定理之间类比的人；一个伟大的数学家是能看到类比之间的类比的人。

The world is a machine, and we are its broken parts.

The only way to save a rhinoceros is to save the environment in which it lives, because there's a mutual dependency between it and millions of other species of both animals and plants.

孤独是人类的常态。培养它。它如何深入你，让你的灵魂有空间成长。

Every barrel of oil we produce comes with a commitment to do it better than before.

假如一个人听到差劲的音乐，他的责任就是用谈话把它压下去。