On Smoking
The thing about smoking is that when you quit smoking you quit it every day. Imagine a light switch on the wall. You turn it off by quitting smoking and you can always go back at a desperate time for instance and turn it on. And some time later off again. Smoking your first cigarette implants that light switch on your mind and you can't make it go away. Since you know how it makes you feel good when the switch is on, you at some level desire to back to it. Whole idea of quitting smoking is then finding ways to stop yourself from turning it on again and this is true until you die. So do yourself a favor and avoid any substance that creates such light switches in your mind.Edit: Of course this is not the case for 100% of humans. Everyone is different. Some weak some strong in willpower, discipline, etc. But we can all agree that it is an addiction that sucks life out of you slowly. You wouldn't want to test your willpower your whole life against such a sneaky enemy.