[Y]ou do not have anything interesting to say to someone who is struggling with obesity. You do not have better willpower than they do. You do not “care about myself” more. You are not more “serious about a healthy lifestyle” because you took off the eight pounds you gained at Christmas. You are no more qualified to lecture the obese on how to lose weight than I am qualified to lecture my short friends on how to become tall. You just have a different environmental and genetic legacy than they do. You’re not superior. You’re just somewhat thinner.