Медом больше мух наловишь, чем уксусом

See Ласка вернее таски (Л)

Cf:

A drop of honey catches more flies than a hogshead of vinegar (Am., Br.). Flies are easier caught with honey than vinegar (Br.). Honey attracts (catches) more flies than vinegar (Am.). Molasses catches more flies than vinegar (Am.). More flies are caught with honey than vinegar (Br.). More wasps are caught by honey than by vinegar (Am.). An ounce of honey draws more flies than a gallon of gall (Am.). A teaspoon of sugar will catch more flies than a gallon of vinegar (Am.)