No hay libro tan malo [...] que no tenga algo bueno.

pues no hay libro tan malo, que no tenga alguna cosa buena.

There is no book so bad...that it does not have something good in it.

He used to say that "no book was so bad but that some good might be got out of it."

"There is no book so bad," said the bachelor, "but something good may be found in it."

Even on the bad days, there’s always something good you can do.

The good parts of a book may be only something a writer is lucky enough to overhear or it may be the wreck of his whole damn life — and one is as good as the other.

Remember that in the midst of that which is most tragic there is always the comic and in the midst that which is most evil there is always much good.

In the misfortunes of our best friends, we always find something not unpleasing.

One always has a better book in one’s mind than one can manage to get onto paper.

One always has a better book in one's mind than one can manage to get onto paper.

. . . everywhere a good and a bad book

A good book is never exhausted. It goes on whispering to you from the wall.

A good book is the best of friends, the same to-day and for ever.