No book can ever be finished. While working on it we learn just enough to find it immature the moment we turn away from it.

No book can ever be finished. While working on it we learn just enough to find it immature the moment we turn away from it.

没有一本书是写不完的。当我们在做这件事的时候，我们学到了足够的东西，当我们离开它的时候，我们会发现它不够成熟。

-- Karl Popper 波普尔