Русско-английский словарь пословиц и поговорок
ДУРАКИ О ДОБЫЧЕ СПОРЯТ, А УМНЫЕ ЕЕ ДЕЛЯТ
While some men are disputing their right to something, others get hold of it
Cf:Two dogs fight (strive) for a bone, and a third runs away with it (Br.). Two dogs fight over a bone, while the third always runs away with the bone (Am.)