" The one who later told the story in most detail was Simone de Beauvoir, then around twenty-five years old and given to watching the world closely through her elegant hooded eyes. She was there with her boyfriend, Jean-Paul Sartre, a round-shouldered twenty-seven-year-old with downturned grouper lips, a dented complexion, prominent ears, and eyes that pointed in different directions, for his almost-blind right eye tended to wander outwards in a severe exotropia or misalignment of the gaze. Talking to him could be disorienting for the unwary, but if you forced yourself to stick with the left eye, you would invariably find it watching you with warm intelligence: the eye of a man interested in everything you could tell him. "

― Sarah Bakewell , At the Existentialist Café: Freedom, Being, and Apricot Cocktails