“Physics is like sex: sure, it may give some practical results, but that's not why we do it.”
“This sex thing. We never used to be hung up like this. Nature doesn't give little kids problems except when there's some kind of an accident--like that eight-year-old South American girl that had a baby. But that's practically a mutation, right?”
“Understanding is a lot like sex; it’s got a practical purpose, but that’s not why people do it normally.”
“That's why it's called a practice. We have to practice a practice if it is to be of value.”
“You may have noticed we have no sex lives. As a result there's lots of chocolate in this house.”
“Not sure if there is a God or why some all-powerful being would give half a damn about the likes of me.”