The proof is in the pudding.
You are a devil at everything, and there is no kind of thing in the 'versal world but what you can turn your hand into.
He who's never loved cannot be good.
Everyone is as God has made him, and oftentimes a great deal worse.
Do you see over yonder, friend Sancho, thirty or forty hulking giants? I intend to do battle with them and slay them.
Never meddle with play-actors, for they're a favoured race.