The old man (Abba Muthues) used to say, “Who sold Joseph?” They said unto him, “His brethren” and the old man said unto them, “No, it was humility that sold him. For he never said, ‘I am your brother’, and he never answered them, but held his peace. He sold himself by his humility, and this humility made him governor over the land of Egypt.”

[Apophthegmata Patrum]