"To live is the rarest thing in the world. Most people exist, that is all."
生活是世界上最罕见的事情。大多数人只是存在，仅此而已。
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
两条路在树林中分岔，我选着走人少的那一条，这就导致了所有的不同。