Deal with the faults of others as gently as with your own

Similar sayings:

Think of your own faults the first part of the night when you are awake, and the faults of others the latter part of the night when you are asleep Think of your own faults the first part of the night when you are awake, and the faults of others the latter part of the night when you are asleep
Govern a family as you would cook a small fish–very gently Govern a family as you would cook a small fish–very gently
Men know not all their faults, oxen all their strength Men know not all their faults, oxen all their strength
Vicious as a tigress can be, she never eats her own cubs Vicious as a tigress can be, she never eats her own cubs

Chinese sayings and proverbs