Diaries

If Theism had done nothing else for me, I should still be thankful that it cured me of the time-wasting and foolish practice of keeping a diary. (Even for autobiographical purposes a diary is nothing like so useful as I had hoped. You put down each day what you think important; by of course you cannot each day see what will prove to have been important in the long run.)

—C.S. Lewis, Surprised by Joy.