Page:My Life and Loves.djvu/68

42 When I was about fourteen I discovered that to think of love before going to sleep was to dream of it during the night. And this experience taught me something else; if I repeated any lesson just before going to sleep, I knew it perfectly next morning; the mind, it seems, works even during unconsciousness. Often since, I have solved problems during sleep in mathematics and in chess that have puzzled me during the day.