I didn’t start out as a writer. I became one through my habits. - James Clear

The person who learns the most in any classroom is the teacher.

If you really want to learn a topic, then “teach” it. Write a book. Teach a class. Build a product. Start a company.

The act of making something will force you to learn more deeply than reading ever will.

You are only as mentally tough as your life demands you to be.

An easy life fashions a mind that can only handle ease. A challenging life builds a mind that can handle challenge. Like a muscle that atrophies without use, mental strength fades unless it is tested.

When life doesn't challenge you, challenge yourself.

Optimize for your desired lifestyle, not your desired title.