“If a person loves only one other person and is indifferent to all others, his love is not love but a symbiotic attachment, or an enlarged egotism.”
The Art of Loving (1956)
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Erich Fromm 119
German social psychologist and psychoanalyst 1900–1980Related quotes

“Love personalizes all that it loves. Only by personalizing it can we fall in love with an idea.”
The Tragic Sense of Life (1913), VII : Love, Suffering, Pity
Context: Consciousness (conscientia) is participated knowledge, is co-feeling, and co-feeling is com-passion. Love personalizes all that it loves. Only by personalizing it can we fall in love with an idea. And when love is so great and so vital, so strong and so overflowing, that it loves everything, then it personalizes everything and discovers that the total All, that the Universe, is also a person possessing a Consciousness, a Consciousness which in its turn suffers, pities, and loves, and therefore is consciousness. And this Consciousness of the Universe, which a love, personalizing all that it loves, discovers, is what we call God.
Source: The Friends of Voltaire (1906), Ch. 3 : Galiani : The Wit, p. 79

Source: Man for Himself (1947), Ch. 4

Source: The Courage to Create (1975), Ch. 1 : The Courage to Create, p. 13
Context: Courage is not a virtue of value among other personal values like love or fidelity. It is the foundation that underlies and gives reality to all other virtues and personal values. Without courage our love pales into mere dependency. Without courage our fidelity becomes conformism.

Google this: Jean Vanier and what it means to be human http://www.huffingtonpost.com/david-briggs/google-this-jean-vanier-a_b_7484702.html Huffington Post, 02/06/2015
From interviews and talks

Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 80.