"Know your place in the world and evaluate yourself fairly, not in terms of the naïve ideals of your own youth, nor in terms of what you erroneously imagine you

"Know your place in the world and evaluate yourself fairly, not in terms of the naïve ideals of your own youth, nor in terms of what you erroneously imagine your teacher's ideals are" - Richard Feynman I doubt Feynman's reaction to the boy's letter would have been: "I also see the making of self-righteous, arrogant know-it-all....Seriously, he's telling scientists how to do their job". There's not a single thing in the boy's letter that is factually incorrect. It's merely a statement of opinion accompanied by some supporting data. The child's name is in my comment. If you don't like something someone says then critique their opinion but try not to be personal and rude, it only makes you sound bitter.