Jordan Peterson, a Canadian psychologist and author, is known for his book "12 Rules for Life: An Antidote to Chaos." This book contains 12 principles or rules that Peterson offers as guidance for navigating life and finding meaning. It's possible that he might have referenced other rules or principles in other contexts or lectures, but the main focus of his popular book is on these 12 rules:
- Stand up straight with your shoulders back.
- Treat yourself like someone you are responsible for helping.
- Make friends with people who want the best for you.
- Compare yourself to who you were yesterday, not to who someone else is today.
- Do not let your children do anything that makes you dislike them.
- Set your house in perfect order before you criticize the world.
- Pursue what is meaningful, not what is expedient.
- Tell the truth, or at least don't lie.
- Assume that the person you are listening to might know something you don't.
- Be precise in your speech.
- Do not bother children when they are skateboarding.
- Pet a cat when you encounter one on the street.
These rules are derived from Peterson's deep understanding of psychology, mythology, and philosophical principles. He presents them as practical advice to help individuals take responsibility, find meaning, and confront the challenges of life.
It's worth noting that the number 40 might be associated with other lists or references by Jordan Peterson, but the main and widely known set of rules is the "12 Rules for Life" as outlined above.