“Any passion can become an addiction; but then how to distinguish between the two? The central question is: who’s in charge, the individual or their behaviour? It’s possible to rule a passion, but an obsessive passion that a person is unable to rule is an addiction. And the addiction is the repeated behaviour that a person keeps engaging in, even though he knows it harms himself or others. How it looks externally is irrelevant. The key issue is a person’s internal relationship to the passion and its related behaviours.

If in doubt, ask yourself one simple question: given the harm you’re doing to yourself and others, are you willing to stop? If not, you’re addicted. And if you’re unable to renounce the behaviour or to keep your pledge when you do, you’re addicted. There is, of course, a deeper, more ossified layer beneath any kind of addiction: the denial state in which, contrary to all reason and evidence, you refuse to acknowledge that you’re hurting yourself or anyone else. In the denial state you’re completely resistant to asking yourself any questions at all. But if you want to know, look around you. Are you closer to the people you love after your passion has been fulfilled or more isolated? Have you come more truly into who you really are or are you left
feeling hollow?”