To teach the dog to bark
Учить собаку лаять (т. е. ломиться в открытые ворота).
Ученого учить - только портить. Рыбу плавать не учат. Не учи плавать щуку, щука знает свою науку.
Другие пословицы:
- Like a cat on hot bricks
- Care killed the cat
- Dogs that put up many hares kill none
- Dumb dogs are dangerous
- He that lies down with dogs must rise up with fleas
- Dog does not eat dog
- Every dog is valiant at his own door
- It is enough to make a cat laugh
- A shy cat makes a proud mouse
- Scornful dogs will eat dirty puddings
- The cat would eat fish and would not wet her paws
- All cats are grey in the dark (in the night)
- You cannot teach old dogs new tricks
- The scalded dog fears cold water
- Dog eats dog