A cowardly cur barks more fiercely than it bites.
When the truth cannot be clearly made out, what is false is increased through fear.
Posterity pays for the sins of their fathers.
Doctors cure the more serious diseases with harsh remedies. Curtius Medici graviores morbos asperis remediis curant
Habit is stronger than nature.
Timid dogs more eagerly bark than bite.