"It is logical that their love-making be troubled by a sense of falseness or hollowness, for they are attempting to found the uniqueness of the spousal relationship on an act of pleasure that tends ultimately to close each one of them sterilely in on himself or herself, and they are refusing to found that relationship on the truly unique conjugal dimension of loving co-creativity which is capable, in its vitality, of opening each of them out not merely to one another but to the whole of life and creation."