理解是接受的第一步，只有接受才能康复。

理解计算的极限需要深入研究支撑算法复杂性的数学基础。

The universe is full of surprises, and we are just beginning to scratch the surface of understanding it.

The state, therefore, has not existed from all eternity. There have been societies that did without it, that had no notion of the state or state power. At a certain stage of economic development, which was necessarily bound up with the split of society into classes, the state became a necessity.

成功不是给予的，而是赢得的。