" Telling teenagers about the health risks of smoking—It will make you wrinkled! It will make you impotent! It will make you dead!—is useless,” Harris concludes. “This is adult propaganda; these are adult arguments. It is because adults don’t approve of smoking—because there is something dangerous and disreputable about it—that teenagers want to do it. "

― Malcolm Gladwell , The Tipping Point: How Little Things Can Make a Big Difference