"Books are the windows to other realities."

真相不是单一的，而是多样的，每一个都有它自己的声音。

The value of a commodity, or the quantity of any other commodity for which it will exchange, depends on the relative quantity of labor which is necessary for its production, and not on the greater or less compensation which is paid for that labor.

世人常因冀望遥远难及的幸福，忽略了眼前的小乐趣。

Safety is not just a policy, it's a way of life.

在大数据时代，数据结构和算法的数学原理变得比以往任何时候都更加关键。