Русско-английский словарь пословиц и поговорок
НА ВСЯКОГО ДУРАКА УМА НЕ НАПАСЕШЬСЯ
Sometimes it is hard for a wise man to manage with a fool or an incompetent man
Cf:A fool can ask more questions in a minute than a wise man can answer in an hour (Am.). A fool can ask more questions in an hour than a wise man an answer in seven years (Am.). A fool can ask questions that wise men cannot answer (Am.). A fool may ask more questions /in an hour/ than a wise man can answer /in seven years/ (Br.)