Dogs have so many friends because they wag their tails, not their tongues

Similar sayings:

A dog won’t forsake his master because of poverty; a son never deserts his mother because of her homely appearance A dog won’t forsake his master because of poverty; a son never deserts his mother because of her homely appearance
Four horses cannot overtake the tongue Four horses cannot overtake the tongue
To attract good fortune, spend a new coin on an old friend, share an old pleasure with a new friend, and lift up the heart of a true friend by writing his name on the wings of a dragon To attract good fortune, spend a new coin on an old friend, share an old pleasure with a new friend, and lift up the heart of a true friend by writing his name on the wings of a dragon
The pen of the tongue should be dipped in the ink of the heart The pen of the tongue should be dipped in the ink of the heart
A bridle for the tongue is a necessary piece of furniture A bridle for the tongue is a necessary piece of furniture

Chinese sayings and proverbs