The basis of tragedy is man's helplessness against disease, war and death; the basis of comedy is man's helplessness against vanity (the vanity of love, greed, lust, power).
I was really excited to get to shave my head - it's something I'd wanted to do for a while and now I had a good excuse. It was nice to shed that level of vanity.
Vanity of science. Knowledge of physical science will not console me for ignorance of morality in time of affliction, but knowledge of morality will always console me for ignorance of physical science.
When you're 50 you start thinking about things you haven't thought about before. I used to think getting old was about vanity - but actually it's about losing people you love. Getting wrinkles is trivial.