Quote by Miguel de Cervantes
I have always heard, Sancho, that doing good to base fellows is like throwing water into the sea.
Summary
This quote suggests that helping or being kind to people who are morally corrupt or have a low character is pointless and futile. The comparison of doing good to base fellows with throwing water into the sea implies the idea of the action having no significant impact or influence. It may reflect the skepticism or frustration one feels when their efforts to bring positive change or improvement in others are met with constant resistance or indifference, making their actions seem insignificant in the grand scheme of things.