有用是这些老人曾经对自己最好的希望，而无目的是他们最深的恐惧。
"To be useful was the best thing the old men ever hoped for themselves, and to be aimless was their worst fear."
The hardest thing about being a director is figuring out what to do next.
朗兰兹纲领是探索数学思想统一性的框架。
Technology in agriculture should empower farmers, not replace them.
Use music to spread love, use love to move the world.
You will never be happy if you continue to search for what happiness consists of. You will never live if you are looking for the meaning of life.
君子的本性跟一般人没什么不同，（只是君子）善于借助外物罢了。