The pen of the tongue should be dipped in the ink of the heart

Similar sayings:

Four horses cannot overtake the tongue Four horses cannot overtake the tongue
A bridle for the tongue is a necessary piece of furniture A bridle for the tongue is a necessary piece of furniture
Dogs have so many friends because they wag their tails, not their tongues Dogs have so many friends because they wag their tails, not their tongues
He that has no silver in his purse, should have silver on his tongue He that has no silver in his purse, should have silver on his tongue
Honey in his mouth, knives in his heart Honey in his mouth, knives in his heart

Chinese sayings and proverbs