Lamentation is the only musician that always, like a screech-owl, alights and sits on the roof of any angry man.
PlutarchNothing can produce so great a serenity of life as a mind free from guilt and kept untainted, not only from actions, but purposes that are wicked. By this means the soul will be not only unpolluted but also undisturbed. The fountain will run clear and unsullied.
Plutarch