Love is a response to values. It is with a person’s sense of life that one falls in love—with that essential sum, that fundamental stand or way of facing existence, which is the essence of a personality. One falls in love with the embodiment of the values that formed a person’s character, which are reflected in his widest goals or smallest gestures, which create the style of his soul—the individual style of a unique, unrepeatable, irreplaceable consciousness.

Many errors and tragic disillusionments are possible in this process of emotional recognition, since a sense of life, by itself, is not a reliable cognitive guide. And if there are degrees of evil, then one of the most evil consequences of mysticism—in terms of human suffering—is the belief that love is a matter of “the heart,” not the mind, that love is an emotion independent of reason, that love is blind and impervious to the power of philosophy. Love is the expression of philosophy—of a subconscious philosophical sum—and, perhaps, no other aspect of human existence needs the conscious power of philosophy quite so desperately. When that power is called upon to verify and support an emotional appraisal, when love is a conscious integration of reason and emotion, of mind and values, then—and only then—it is the greatest reward of man’s life.

- Ayn Rand. The Romantic Manifesto (1969).