解释:拿着棋子主意不定,就不能战胜对方。
The psychologist must study the mind as it is, not as it ought to be.
数学中最激动人心的时刻是当你意识到两个看似不相关的领域有着深刻的联系时。
The merit of Marx is that he suddenly produces a qualitative change in the history of social thought. He interprets history, understands its dynamic, predicts the future, but in addition to predicting it, he expresses a revolutionary concept: the world must not only be interpreted, it must be transformed.