The History of Don Quixote, Volume 1, Part 08

I have always heard it said, Sancho, that to do good to boors is to throw water into the sea.

我总是听人说，桑丘，对粗人做好事就像往海里倒水。

Senor, replied Sancho, to retire is not to flee, and there is no wisdom in waiting when danger outweighs hope.

先生，桑丘回答说，撤退并不等于逃跑，在危险超过希望时等待并不是明智之举。