The poet is a man who can see the invisible and hear the inaudible.
The secret of happiness is to expand your interests as much as possible and to be as kind as possible to the people and things that interest you.
如果你没有深陷其中,你怎么知道自己有多高?
让我们别把自己看得太过重要,没有人可以垄断智慧。
——〈在广州岭南学堂的演说〉,1912年5月7日
采矿技术不是为了取代人,而是为了让他们能够做得更好。
心理学必须建立在直接经验和内省的基础上。