Each person is freed from the tendency to selfishness by the love of others, in the first place by parents or those who take their place and, definitively, by God, from whom all true love proceeds and in whose love alone does man discover to what extent he is loved. This very simple yet profound proclamation is owed to humanity by the Church. Gaudium et Spes, 22. Letter to Families, Gratissimam Sane, 14. Love and Human Sexuality 10.
Man is called to love and to self-giving in the unity of body and spirit.
Femininity and masculinity are complementary gifts, through which human sexuality is an integrating part of the concrete capacity for love which God has inscribed in man and woman. Sexuality is a fundamental component of personality, one of its modes of being, of manifestation, of communicating with others, of feeling, of expressing and of living human love. Every form of love will always bear this masculine and feminine character. Insofar as it is a way of relating and being open to others, sexuality has love as its intrinsic end, more precisely, love as donation and acceptance, love as giving and receiving. Educational Guidance in Human Love, 6.