Mathematics is a language that allows us to describe the indescribable.
对于每一位专家，都会有一个同等的或者完全相反的专家。但对于每一个事实，并不一定就有一个同等的或者相反的事实存在。
The unexamined life is not worth living.
The power of games lies in their ability to let people experience things they can't in reality.
国际体系的无政府性质迫使各国将自身生存置于一切之上。