Dr. M. Scott Peck.
Sacrificial love has transforming power. Genuine love is volitional rather than emotional. The person who truly loves does so because of a decision to love. This person has made a commitment to be loving whether or not the loving feeling is present. It is, so much the better; but if it isn't, the commitment to love, the will to love, still stands and is still exercised.
Conversely, it is not only possible but necessary for a loving person to avoid acting on feelings of love. I may meet a woman who strongly attracts me, whom I feel like loving, but because it would be destructive to my marriage to have an affair, I will say vocally or in the silence of my heart, "I feel like loving you, but I am not going to." My feelings of love may be unbounded, but my capacity to be loving is limited. I therefore must choose the person on whom to focus my capacity to love, toward whom to direct my will to love. True love is not a feeling by which we are overwhelmed. It is a committed, thoughtful decision.