1. Human psychology. It’s a young field, and no one has all the answers yet. But you can get a better understanding of why other people do what they do — and how to thread your way through life’s complexities — by studying at least a little of this field.
2. The basics of accounting. This will greatly reduce your chances of being swindled in life. It also will make it much easier for you to do some systematic planning, while keeping track of how you’re doing vis a vis your plans.
3. Music. It will calm you. It will inspire you. It will build bridges to a more interesting set of friends.
4. Your own family’s story. Where did your parents grow up, and how did that shape who they are? What are the formal or informal communities that help define your identity? (“We are athletes … we are Irish … we are restless spirits who move from city to city.”) Having an enduring sense of identity that goes beyond the ups and downs of your own life will be a source of comfort and motivation all your life.
5. The way your government really works. Find out why some laws are tightly enforced and others aren’t. Learn the best ways of influencing your government — whether it’s on matters of national significance or something as personal as winning a zoning variance for the cafe you run. Finally, gain some non-bitter insights about why society doesn’t always work the way you’d like.
6. Good nutrition and how to incorporate it into your life. Mike Leary is right. In a poor society, this is the difference between life and death. In a rich society, it’s — surprise! — the difference between a long, robust future and chronic illness that can turn deadly far too soon.
7. Different cultural values. If you’re going to be effective outside a small cluster of people like you, you’ll need to understand and appreciate how other tribes work, too.
8. How to communicate your ideas to the wider world. Justin Freeman is right. Learn how to speak clearly and persuasively. Or to write well. Or to create useful and appealing computer code, video, music, etc. Pick the medium that works best for you, and make sure you don’t go through life being mute.
9. Effective parenting. Just because your parents didn’t quite get it right (no one ever does!) doesn’t mean that you can’t do better. Find your own style, stick with what works … but keep refining your approach as you learn from others. You owe it to the species.
10. Quora. It’s one-stop shopping! Be aware of what’s on Quora, and you’ll be a big step closer to mastering everything else.