科学不在于正确，而在于减少错误。
The strength of a habit is proportional to the amount of reinforcement.
城市是一个迷宫，每条街道都是记忆线团中的一根线。
The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.