You can't. Do you hear me? You think you've figured something out? You run over here so pleased with yourself because you changed your mind. Now you're certain. You're so... sloppy. You don't know anything. The book, the math, the dates, the writing, all that stuff you decided with your buddies, it's just evidence. It doesn't finish the job. It doesn't prove anything.

Proof (ed. Dramatists Play Service Inc, 2001) - ISBN: 9780822217824