William Leffingwell

“Love means to commit oneself without guarantee, to give oneself completely in the hope that our love will produce love in the loved person. Love is an act of faith, and whoever is of little faith is also of little love.”
― Erich Fromm

“The faculty to think objectively is reason; the emotional attitude behind reason is that of humility. To be objective, to use one's reason, is possible only if one has achieved an attitude of humility, if one has emerged from the dreams of omniscience and omnipotence which one has as a child. Love, being dependent on the relative absence of narcissism, requires the developement of humility, objectivity and reason.

I must try to see the difference between my picture of a person and his behavior, as it is narcissistically distorted, and the person's reality as it exists regardless of my interests, needs and fears.”
― Erich Fromm, The Art of Loving

“Giving is the highest expression of potency. In the very act of giving, I experience my strength, my wealth, my power. This experience of heightened vitality and potency fills me with joy. I experience myself as overflowing, spending, alive, hence as joyous. Giving is more joyous than receiving, not because it is a deprivation, but because in the act of giving lies the expression of my aliveness.”
― Erich Fromm, The Art of Loving

“Love isn't something natural. Rather it requires discipline, concentration, patience, faith, and the overcoming of narcissism. It isn't a feeling, it is a practice.”
― Fromm, Eric, The Art of Loving