音乐应该让你感受到什么，而不仅仅是听起来不错。

《在广州石围塘检阅滇均的演说》（1924年4月4日）

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.

数学的本质不仅在于解决问题，还在于提出正确的问题。

我们今天种植的每一棵树都是为我们永远不会见到的后代留下的遗产。

我如此兴奋，仿佛能听到天堂的声音。

You are never too old to set another goal or to dream a new dream.