“You can't go around... licking things that come out of a water treatment plant. That's just... unsanitary.”

“Love is like a precious plant. You can't just accept it and leave it in the cupboard or just think it's going to get on by itself. You've got to keep on watering it. You've got to really look after it and nurture it.”

“But that's how life is. You never know how it's going to turn out, and you can't plan for everything. You just have to do your best dealing with things as they come and hope people forgive you when you make a mistake.”

“You can't just go around blurting out the truth like a prophet with Tourette's syndrome.”

“You can't just go around killing people.You're right. You can't go around killing people.”

“So?" Bob said. "Hat up, go kill her. Problem solved." "Bob," I said. "You can't just go around killing people." "I know. That's why you should do it." "No, no. I can't go around killing people, either.”