Ren

“Because the way people are built, Hermione, the way people are built to feel inside -" Harry put a hand over his own heart, in the anatomically correct position, then paused and moved his hand up to point toward his head at around the ear level, "- is that they hurt when they see their friends hurting. Someone inside their circle of concern, a member of their own tribe. That feeling has an off-switch, an off-switch labeled 'enemy' or 'foreigner' or sometimes just 'stranger'. That's how people are, if they don't learn otherwise.”
― Eliezer Yudkowsky, Harry Potter and the Methods of Rationality

“I will remark, that it is a common misconception of Ravenclaws that all the smart children are Sorted there, leaving none for other Houses. This is not so; being Sorted to Ravenclaw indicates that you are driven by your desire to know things, which is not at all the same quality as being intelligent.”
― Eliezer Yudkowsky, Harry Potter and the Methods of Rationality

“Only a man exceedingly proud and vain," Dumbledore said quietly, as he turned back to the Floo roaring up again with green flames, "would believe that his heir should be like himself, rather than like who he wished that he could be.”
― Eliezer Yudkowsky, Harry Potter and the Methods of Rationality

“Evil done in the name of good. Evil done in the name of evil. Which is worse?”
― Eliezer Yudkowsky, Harry Potter and the Methods of Rationality