Ворона за море летала, а умнее не стала

A stupid person never becomes any wiser wherever he may go. See Каков поехал, таков и приехал (K), Осла хоть в Париж, а он все будет рыж (O), Полетели гуси за море, а прилетели тоже не лебеди (П)

Var.: Ворона за море летала, да вороной и вернулась

Cf: If an ass goes a-traveling, he'll not come back a horse (Am.). If an ass goes a-travelling, he'll not come home a horse (Br.). Lead a pig to Rhine, it remains a pig (Br.). An ox remains an ox, even if driven to Vienna (Br.). Send a donkey to Paris, he'll return no wiser than he went (Br.). Send a fool to France and he'll come a fool back (Br.). Send a fool to the market, and a fool he'll return (Am., Br). Who goes a beast to Rome, a beast returns (Br.)