“You cannot play with the animal in you without becoming wholly animal, play with falsehood without forfeiting your right to truth, play with cruelty without losing your sensitivity of mind. He who wants to keep his garden tidy does not reserve a plot for weeds”

“Who can play without wanting to succeed even with a sentimentally gain?”

“Our research into human strengths does not support the extreme, and extremely misleading, assertion that 'you can play any role you set your mind to,' but it does lead us to this truth: Whatever you set your mind to, you will be most successful when you craft your role to play to your signature talents most of the time.”

“On Sharing“I’m sorry, but if your brother doesn’t want you to play with his shit, then you can’t play with it. It’s his shit. If he wants to be an asshole and not share, then that’s his right. You always have the right to be an asshole—you just shouldn’t use that right very often.”

“Learning is not child's play; we cannot learn without pain.”

“You are a placebo responder. Your body plays tricks on your mind. You cannot be trusted.”