It is a most miserable lot to be without an enemy. [No man can be successful without being envied and hated.]
You should go to a pear tree for pears, not to an elm.
He who leaves a fault unpunished invites crime.
Do not turn back when you are just at the goal.
Even a god finds it hard to love and be wise at the same time. -Amare et sapere vix deo conceditur
A god could hardly love and be wise.