"Every city has a sex and an age which have nothing to do with demography."
计算复杂性的本质是理解什么可以被有效地计算的极限。
智慧之鸟的猫头鹰,在文明的暮色中才开始起飞。
"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."