一幅画必须是它自身的东西，而不是其他事物的再现。

The study of truth requires a considerable effort - which is why few are willing to undertake it out of love of knowledge - despite the fact that God has implanted a natural appetite for such knowledge in the minds of men.

计算机科学家的真正价值在于他们能够看到看不见的东西并解决无法解决的问题。