Jordan Peterson's 12 rules for life are: 1. Stand up straight with your shoulders back. 2. Treat yourself like you would treat someone you are responsible for. 3. Make friends with people who want the best for you. 4. Compare yourself to who you were yesterday, not to who someone else is today. 5. Do not let your children do anything that would make you dislike them. 6. Set your house in order before you criticize the world. 7. Pursue what is meaningful (not what is expedient). 8. Tell the truth — or, at least, don't lie. 9. Assume that the person you are listening to might know something you don't. 10. Be precise in your speech. 11. Do not bother children when they are skateboarding. 12. Pet a cat when you encounter one on the street.