The speed of learning determines the speed of growth.

The great powers are always searching for opportunities to gain power at the expense of their rivals, and they will use force if they think it will profit them.

No matter how good you get you can always get better, and that's the exciting part.

谋划事情无主见，就会陷入困境；做事没有准备好，容易归于失败。

数学是给不同事物起相同名称的艺术。

国君若真的希望人民多而不希望人民减少的话,如果要蓄养姬妾,就不能不节制。