P.D. Ouspensky
Author: P.D. Ouspensky
Publisher: Vintage (1971)

Q. Why is it that some recurrent mistakes you may see, but cannot stop until somebody points them out to you? A. Even that will not help. You can go on doing it every day, until you find the cause. Maybe it depends on some other thing, and this thing on yet another thing and so on. For everything you want to change you must find the beginning. But we do not speak about change now, we only speak about study. Change goes further. Naturally, it you find something very obvious, you must try to change it, but this is mostly for self observation, because if something always happens in a mechanical way you cannot even observe it