1001 rules for my unborn son is a fantastic tumblr blog where you will find hundreds (so far) of words of wisdom about life. For example:

270. Stand up to bullies. You'll only have to do it once.
269. If you've made your point, stop talking.
268. Watch your language at the ballgame.

Sometimes, you find a gem like this one:

Always keep a recent photograph of yourself on file in case of emergencies or unexpected notoriety.

Link - via Nag on the Lake