It took $240k and 6 years to get my PhD. 4 out of 5 of my classmates didn’t make it to the end. It was brutal, but it taught me how to think. To save you quarter million dollars, here are 10 lessons on how to learn about any topic and form your own original insights, quickly👇 1. Study the “classics” hard, and ignore the rest. For any topic there’s the definitive classic text, and…