Letter 94 (§40)

“Nothing is more successful in bringing honourable influences to bear upon the mind, or in straightening out the wavering spirit that is prone to evil, than association with good men. For the frequent seeing, the frequent hearing of them little by little sinks into the heart and acquires the force of precepts. We are indeed uplifted merely by meeting wise men; and one can be helped by a great man even when he is silent.”