If you listen at a hole, you will hear ill of yourself as well as others.
More Spanish Proverbs:
Corsair against corsair nothing is got but empty casks.Spanish
See, hear, and hold your tongue.
Spanish
Give a clown your foot, and he'll take your hand.
Spanish
Even the best writer has to erase.
Spanish
A capon eight months old is fit for a king's table.
Spanish
A friend to everybody is a friend to nobody.
Spanish