Tell nothing to thy friend which why enemy may not know.
More Danish Proverbs:
A man is bound by his word, an ox with a hempen cord.Danish
Riches and favour go before wisdom and art.
Danish
Keep your nose out of another's mess.
Danish
The air is no less blue because the blind man doesn't see it.
Danish
Speech is silver, but silence is golden.
Danish
He must keep a sharp look-out who would speak the truth.
Danish