“One of chief pieces of advice I give to aspiring rationalists is "Don't try to be clever." And, "Listen to those quiet, nagging doubts." If you don't know, you don't know what you don't know, you don't know how much you don't know, and you don't know how much you needed to know.”

“And with the right mentor, don't be afraid to expose your vulnerabilities. Admit you don't know what you don't know. When you acknowledge your weaknesses and ask for advice, you'll be surprised how much others will help.”

“- With respect, Professor McGonagall, I'm not quite sure you understand what I'm trying to do here.- With respect, Mr. Potter, I'm quite sure I don't. Unless - this is a guess, mind - you're trying to take over the world?- No! I mean yes - well, NO!- I think i should perhaps be alarmed that you have trouble answering the question.”

“...if you're unhappy whenever other people don't picture you exactly the same way you picture yourself, that's already dooming yourself to always be unhappy. No one ever thinks of us just the same way we think of ourselves.”

“People don't care how much you know unless you know how much you care”

“People don't care how much you know until they know how much you care”

“Listen very carefully... listen to everyone and don't say much and think about what they say and how they say it and watch their eyes... it becomes like a big jigsaw, but you're the only one who can see all the pieces. You'll know what they want you to know, and what they don't want you to know, and even what they think no one knows.”