Of course, man is his own worst enemy: his own secret and insidious enemy. Wherever the seeds of evil are scattered, they are almost certain to grow. Whereas it takes amazingly good luck for the smallest grain of good not to be stifled.
— Bernanos, Diary of a Country Priest
Everyone carries a room about inside him. This fact can even be proved by means of the sense of hearing. If someone walks fast and one pricks up one's ears and listens, say in the night, when everything round about is quiet, one hears, for instance, the rattling of a mirror not quite firmly fastened to the wall.
– Kafka
Notes from a Room