Ah, I found the correct quote from "Dead Again" which is better than what I remembered, and quite to the point. The character Robin Williams plays, Doctor Cozy Carlisle, a de-frocked shrink working as a grocery clerk:
"Someone is either a smoker or a nonsmoker. There's no in-between. The trick is to find out which one you are, and be that. If you're a nonsmoker, you'll know. "
Marco
"Someone is either a smoker or a nonsmoker. There's no in-between. The trick is to find out which one you are, and be that. If you're a nonsmoker, you'll know. "
Marco