Books are totally useless unless you take their advice. If you just keep reading them, thinking "that's so insightful! that changes everything," but never actually doing anything different, then pretty quickly the feeling will wear off and you'll start searching for another book to fill the void.

What is the most important thing you could be working on in the world right now? ... And if you're not working on that, why aren't you?

Real education is about genuine understanding and the ability to figure things out on your own; not about making sure every 7th grader has memorized all the facts some bureaucrats have put in the 7th grade curriculum.

Reality is painful -- it's so much easier to keep doing stuff you know you're good at or else to pick something so hard there's no point at which it's obvious you're failing -- but it's impossible to get better without confronting it.

Only those blinded by greed would refuse to let a friend make a copy.

Life is short ... so why waste it doing something dumb?

Steadfastness is a noble quality, but unguided by knowledge or humility, it becomes rashness, or obstinacy.