The essence of mathematics lies in its freedom.

The higher your energy level, the more efficient your body. The more efficient your body, the better you feel and the more you will use your talent to produce outstanding results.

The best way to predict the future is to invent it.

至今一切社会的历史都是阶级斗争的历史，即剥削阶级和被剥削阶级之间、统治阶级和被压迫阶级之间斗争的历史。

言辞应当有点狂野，因为它们是对无思考者的思想的冲击。