"The study of computational complexity teaches us that some problems are inherently difficult, no matter how clever our algorithms are."
气候的变化不是一朝一夕的原因,而是逐渐积累的结果。
如果你掌握了所有事实,你的判断可能是正确的;如果你没有掌握所有事实,你的判断就不可能是正确的。
There are no mistakes in art, only unexpected discoveries.
The cosmos is all that is or ever was or ever will be.
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.