The best way to maintain a program is to maintain it.
维护程序的最好方法是维护它。
Investors should avoid chasing past performance.
追求数学知识是一段永无止境的旅程，充满了无尽的好奇和惊奇。
真正的艺术家并不骄傲：他知道艺术是无限的，他觉得自己离目标还很远。
The best forestry practices are those that leave no trace but leave everything changed.
The only way to do great work is to love what you do.
The properties of the whole are not deducible from the properties of the parts.
我已经不再年轻，不再知道一切。