“Round pegs in square holes tend to have dangerous thoughts about the social system and tend to infect others with their discontents.”

“But then I have always been somewhat of a square peg in a round hole.”

“Autists are the ultimate square pegs, and the problem with pounding a square peg into a round hole is not that the hammering is hard work. It's that you're destroying the peg.”

“People going in the wrong direction will get like that. Round pegs just don't fit in square holes.”

“Unless the hole is MEANT to be square,' I said with a sudden erudition that surprised me, 'in which case, all the round pegs are the ones that are wrong, and if the ROUND hole is one that is not meant to be square, then the square ones will, no, hang on--''Shame,' said the historian, 'and you were doing so well.”

“You'd be surprised how many people violate this simple principle every day of their lives and try to fit square pegs into round holes, ignoring the clear reality that Things Are As They Are.”