Russian ⇄ English

бойся молчаливой собаки и тихой заводи stresses
gen.	beware of a quite dog and still water; one does not need to be afraid of a barking dog, but he should be afraid of a silent dog; one doesn't need to be afraid of a barking dog, but he should be afraid of a silent dog; one need not be afraid of a barking dog, but he should be afraid of a silent dog; one needn't be afraid of a barking dog, but he should be afraid of a silent dog; still waters run deep; you do not need to be afraid of a barking dog, but you should be afraid of a silent dog; you don't need to be afraid of a barking dog, but you should be afraid of a silent dog; you need not be afraid of a barking dog, but you should be afraid of a silent dog; you needn't be afraid of a barking dog, but you should be afraid of a silent dog