我试图让每一个地方都比我发现它时更好一点。
I try to leave every place a little better than I found it.
The soul becomes dyed with the color of its thoughts.
我们就是土地，土地就是我们。
The essence of modernity is psychologism, the experiencing and interpretation of the world in terms of the reactions of our inner life and indeed as an inner world, the dissolution of fixed contents in the fluid element of the soul, from which all that is substantive is filtered and whose forms are merely forms of motion.
Mathematics allows us to see the hidden structures that govern the world around us.
《致陈新政及南洋同志书》（1914年6月15日）
你最害怕的东西本身其实并不可怕。是你的害怕使它显得可怕。只要勇敢地面对真相，你就会身心解放。
Laugh, and the world laughs with you; weep, and you weep alone.
