" The results were dramatic. While Huxley’s drug adventure would be mystical and ecstatic, and one of Dr. Lagache’s assistants had enjoyed prancing through imaginary meadows with exotic dancers, Sartre’s brain threw up a hellish crew of snakes, fish, vultures, toads, beetles and crustaceans. Worse, they refused to go away afterwards. For months, lobster-like beings followed him just out of his field of vision, and the facades of houses on the street stared at him with human eyes. "

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