Adrian Tan delivered an amazing combination of wisdom and wit to a graduating class in Singapore:
Do not waste the vast majority of your life doing something you hate so that you can spend the small remainder sliver of your life in modest comfort. You may never reach that end anyway.
Resist the temptation to get a job. Instead, play. Find something you enjoy doing. Do it. Over and over again. You will become good at it for two reasons: you like it, and you do it often. Soon, that will have value in itself.
He’s also the author of The Teenage Textbook, which I can’t find anywhere online, much less in English. Still, I’d like to read it.