计算复杂性的本质是理解什么可以被有效地计算的极限。
Without sacrifice, there is no freedom.
My buildings are incomplete without the presence of people.
大多数人发现他们从未后悔的事情只是他们的错误,但发现时已经太晚了。
To write is to confront the ghosts of the past and give them a voice in the present.