没有艺术；没有文学；没有社会；最糟糕的是，持续的恐惧和暴力死亡的威胁；人的生活孤独、贫穷、肮脏、野蛮和短暂。
No arts; no letters; no society; and which is worst of all, continual fear, and danger of violent death; and the life of man, solitary, poor, nasty, brutish, and short.
晏子春秋
失去某人，最糟糕的莫过于，他近在身旁，却犹如远在天边。
建立在规则上的自由，才是真正的自由！
The historian is a prophet in reverse.
The study of mathematics is a journey into the unknown, where each discovery opens the door to new mysteries.
