En este artículo se estudia el tema del amor en el contexto del matrimonio y familia. Investiga la distinción entre las cuatro palabras griegas que denotan amor: agape, eros, storge y philia. El 1º dice relación a Dios; el 2º, entre esposos; el 3º, de padres a hijos; el 4º, entre hijos. Relaciona el tratamiento poliano del amor con el de la encíclica Deus caritas est de Benedicto XVI. ------- In this article we study the love in the context of marriage and family. We investigate the distinction between the four greek words which are employed to designate different types of love. This 1st says relation to God; the 2d , betwen spou-ses; the 3t from parents to children; the 4d between the children. We put in relation the polian treatment of love with the other of Benedict XVII in Deus caritas est.