It is necessary from the very nature of things that power should be a check to power.
Nothing is a waste of time if you use the experience wisely.
君主所凭借着驱使臣下的,只有尚贤一种方法；臣下用来侍奉君主的,也只有仁义一条途径。
当你愿意挑战现状时，创新就会发生。
The art of algorithm design is not just in solving problems, but in discovering new ways to think about them.
努力计算两次。
Books make great gifts because they have whole worlds inside of them.
