что соответствует в англ-кто промолчит, тот не соврёт.

Ask no questions and hear no lies.
The cruellest lies are often told in silence.
Even a fool is thought wise if he keeps silent, and discerning if he holds his tongue.
One who keeps silent,endures.
Нашла!! !Выбирайте что вам больше нравится:) ) Мне понравился ирландский вариант: )
A silent man is seldom ridiculed for his thoughts. (German)

A silent man’s words are not brought into court. (Danish)

A silent mouth is sweet to hear. (Irish)

A silent pig digs the deepest root. (Lithuanian)

A silent woman is always more admired than a noisy one. (Roman)

Be silent and you will pass for a philosopher. (Roman)

Be silent, or say something better than silence. (German)

Better to be silent than speak ill. (Portuguese)

Deliver us from a silent man, and a dog that does not bark. (Spanish)

Even a fool is thought wise if he keeps silent, and discerning if he holds his tongue. (Italian)

He who is silent gains store. (Spanish)

It is best to be silent in a bad cause. (Roman)

It is better to be silent in a bad situation. (Hausan)

It is but a small merit to observe silence, but a grave fault to speak of matters on which we should be silent. (Roman)

It is well for one to know more than he says. (Roman)

It is well to know how to be silent till it is time to speak. (Portuguese)

Never miss a good chance to shut up. (American)

The one who is silent is seen to consent. (Roman)

The silent dog is the first to bite. (German)

The silent find peace in everything. (Spanish)

The silent man is most trusted. (Danish)

The silent sin not, nor tells lies. (Spanish)

может так: who keeps in silent - this one won'"t lie.