A gentle word opens an iron gate.
More Bulgarian Proverbs:
Ravens do not peck each other's eyes out.Bulgarian
From walking -- something; from sitting -- nothing.
Bulgarian
He who breaks his word shall through his word be broken.
Bulgarian
If you wish to drown, do not torture yourself with shallow water.
Bulgarian
The wolf changes only his coat -- not his character.
Bulgarian
If you call one wolf, you invite the pack.
Bulgarian