Talking of that first cigarette you ever smoked, we're sure it wasn't a logical decision. It's highly unlikely that you sat down with a piece of paper and weighed up the pros and cons of smoking. Of course not, it was an emotional decision - "It felt right!" You probably felt cool, or part of the crowd. This is another serious flaw with willpower. It is a logical approach to stopping. It is basically saying "I'm stupid, smoking is stupid therefore I'm going to stop (even though I don't really want to)".
Using the approach outlined in this book, you are finding your own way to stop. Because it wasn't a logical choice to start then it won't be a logical choice to stop. It will just feel right.
For further ideas and advice and ways to stop smoking, visit the substantial resources section of this site - Stop Smoking Resources