For a long time I’ve been wanting to write to you in the evening after one of those outings with friends that I will soon be describing in “A Defeat,” the kind when the world is ours. I wanted to bring you my conqueror’s joy and lay it at your feet, as they did in the Age of the Sun King. And then, tired out by all the shouting, I always simply went to bed. Today I’m doing it to feel the pleasure you don’t yet know, of turning abruptly from friendship to love, from strength to tenderness. Tonight I love you in a way that you have not known in me: I am neither worn down by travels nor wrapped up in the desire for your presence. I am mastering my love for you and turning it inwards as a constituent element of myself. This happens much more often than I admit to you, but seldom when I’m writing to you. Try to understand me: I love you while paying attention to external things. At Toulouse I simply loved you. Tonight I love you on a spring evening. I love you with the window open. You are mine, and things are mine, and my love alters the things around me and the things around me alter my love.
Jean-Paul Satre, to Simone de Beauvoir.