一个好的抽象是强调本质而抑制无关紧要的。
A good abstraction is one that emphasizes the essential and suppresses the irrelevant.
求人要求英雄，接济人要接济那些急时没有办法的人。
The great and chief end, therefore, of men's uniting into commonwealths and putting themselves under government is the preservation of their property.
The best designs are those that solve problems elegantly without drawing attention to themselves.
故事的力量在于它能够连接我们，提醒我们共同的人性。
剑鞘保护剑的锋利，自己却满足於它自己的迟钝。