Little pitchers have big ears

Similar English and Irish sayings:

Little pitchers have long ears Little pitchers have long ears
Whether the pitcher strikes the stone, or the stone the pitcher, it is bad for the pitcher Whether the pitcher strikes the stone, or the stone the pitcher, it is bad for the pitcher
A child’s service is little, yet he is no little fool that despises it A child’s service is little, yet he is no little fool that despises it

Proverbs and English sayings