A timid dog barks more violently than it bites. Curtius Canis timidus vehementius latrat quam mordet
Timid dogs more eagerly bark than bite.
When the truth cannot be clearly made out, what is false is increased through fear.
Nothing is strong that may not be endangered even by the weak.
The deepest rivers flow with the least sound.
Doctors cure the more serious diseases with harsh remedies. Curtius Medici graviores morbos asperis remediis curant