A la recherche du temps perdu

"In those brief but inevitable moments when we hate someone we love—moments which last sometimes for a whole lifetime in the case of people we do not love—we do not wish to appear kind in order not to be pitied, but at once as unpleasant and as happy as possible so that our happiness may be truly hateful and wound to the very soul the occasional or permanent enemy."
—  Marcel Proust, La Captive, trans. Moncrieff, Kilmartin & Enright