There is only one road in the world that no one but you can take. Where does it lead? Don't ask, just walk.

The Liskov Substitution Principle is a fundamental concept in object-oriented programming, ensuring that derived classes can be used in place of their base classes without altering the correctness of the program.

我的朋友，真正的困难不在于逃避死亡，而在于逃避不义；因为不义比死亡跑得更快。

Good design is as little design as possible.

The first fruit of this imagination—and the first lesson of the social science that embodies it—is the idea that the individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.