“Yet there can never be happiness in compulsion. It is not enough for love to be shared: it must be shared freely. That is to say it must be given, not merely taken. Unselfish love that is poured out upon a selfish object does not bring perfect happiness: not because love requires a return or a reward for loving, but because it rests in the happiness of the beloved. And if the one loved receives love selfishly, the lover is not satisfied. He sees that his love has failed to make the beloved happy. It has not awakened his capacity for unselfish love. Hence the paradox that unselfish love cannot rest perfectly except in a love that is perfectly reciprocated: because it knows that the only true peace is found in selfless love. Selfless love consents to be loved selflessly for the sake of the beloved. In so doing, it perfects itself. The gift of love is the gift of the power and the capacity to love, and, therefore, to give love with full effect is also to receive it. So, love can only be kept by being given away, and it can only be given perfectly when it is also received. 2. Love not only prefers the good of another to my own, but it does not even compare the two. It has only one good, that of the beloved, which is, at the same time, my own. Love shares the good with another not by dividing it with him, but by identifying itself with him so that his good becomes my own. The same good is enjoyed in its wholeness by two in one spirit, not halved and shared by two souls. Where love is really disinterested, the lover does not even stop to inquire whether he can safely appropriate for himself some part of the good which he wills for his friend. Love seeks its whole good in the good of the beloved, and to divide that good would be to diminish love. Such a division would not only weaken the action of love, but in doing so would also diminish its joy. For love does not seek a joy that follows from its effect: its joy is in the effect itself, which is the good of the beloved. Consequently, if my love be pure I do not even have to seek for myself the satisfaction of loving. Love seeks one thing only: the good of the one loved. It leaves all the other secondary effects to take care of themselves. Love, therefore, is its own reward.”
Thomas Merton wrote more than 70 books, mostly on spirituality, as well as scores of essays and reviews. Merton was a keen proponent of interfaith understanding.
Interest in his work contributed to a rise in spiritual exploration beginning in the 1960s and 1970s in the US. Merton's letters and diaries, reveal the intensity with which their author focused on social justice issues, including the civil rights movement and proliferation of nuclear arms. He had prohibited their publication for 25 years after his death. Publication raised new interest in Merton's life.