Human perfection achieved in self-giving interaction with others
Rather, what is sought is the truth of the person—what the person is and what the person reveals from deep within. Human perfection, then, consists not simply in acquiring an abstract knowledge of the truth, but in a dynamic relationship of faithful self-giving with others. It is in this faithful self-giving that a person finds a fullness of certainty and security. At the same time, however, knowledge through belief, grounded as it is on trust between persons, is linked to truth: in the act of believing, men and women entrust themselves to the truth which the other declares to them.
John Paul II, Fides et Ratio