The secret of greatness is simple: do better work than any other man in your field - and keep on doing it.
Walking is the best possible exercise. Habituate yourself to walk very far.
Hearing voices no one else can hear isn't a good sign, even in the wizarding world.
I love being married. It's so great to find that one special person you want to annoy for the rest of your life.
You should not live one way in private, another in public.
Good taste is the enemy of comedy.
Posterity is as likely to be wrong as anyone else.