"Those who inspire in us the greatest affection are not always those for whom we have the highest regard. Tenderness does not require admiration and enthusiasm: it is based on a feeling of equality which makes us seek out in a friend a peer, a man subject to our own passions, our own weaknesses. Veneration demands a different sort of affection than that continuously openhearted intimacy we call friendship. I would have a very poor opinion of a man who could not love what he admired; I would have an even worse opinion of a man who could love only what he admired. This applies merely to friendship. Love is a different creature entirely: it lives only on enthusiasm, and all that injures its feverish delicacy blights and withers it. But the sweetest of all human emotions, the one that is nourished by calamities and mistakes as well as by greatness and heroic acts, the one that spans every stage of life, that begins to develop in us from our very first sensation of being, and that endures as long as we do, the one that parallels and actually lengthens our life, that is reborn from its ashes and that reties itself as tightly and just as firmly after being broken; that emotion, alas! is not love, as you well know, but friendship. (beginning of Chapter 1)"