One of the clearest signs of learning is rethinking your assumptions and revising your opinions.
21 things I rethought in 2021: a thread... https://t.co/ne7usTyTFn
If you have one truly good idea in your life, that is more than enough.
To improve your mind, read fiction. We spend the vast majority of our professional lives in pure knowledge-gathering mode; there are different, deeper truths hidden in stories.
“Never quit” is terrible advice. Try lots of things, quit lots of things. Your time is not infinite.