We start with people who are motivated to get paid and be on TV, and we end up with people who have been transformed by the experience and go on to embrace sobriety. If they relapse, like most of my patients do, we continue to support and treat them. I'm thrilled that five out the eight [Celebrity Rehab cast members] showed up for after-care, and two more committed to coming back.

It's bizarre to me that you can have political commentators, sports commentators, weather commentators, but with medicine, people go, "You can't do that."

We need more physicians on air. We understand the human being, experience and condition, and we need to be using media to deliver that. We cannot be afraid to entertain. Experiential phenomenon that entertains, educates. It changes peoples' ideas and culture. I believe that strongly.

I grew up in a Christian home, but was nearly 17 before I realized I had to make my own decision to place my trust in Christ. Salvation cannot be earned by doing good works or going to church, and can't be automatically passed on from Christian parents. Salvation is a free gift from God, who sent His Son Jesus Christ to die in our place.

I'm not a Twitter fan. I do it because I feel responsible to the two million people that follow me, but Twitter to me is just another thing I have do. And it's mostly a place for people to attack and abuse you. I don't really get much out of it, personally. I get hundreds of demands to answer the kind of medical questions that require three years of treatment to assess, yet people are furious when I don't solve their problems in 140 characters. It's really stunning.

The very wealthy and the very famous have a much closer affinity with the indigent street person than with the rest of us. There's the narcissism, the addiction, even the outlandish dress. Often they don't put great value in relationships.

The experience we all share and the outcomes, which have been remarkable in a way I never could have predicted. Taking unmotivated people - maybe marginally motivated to get on TV and make money - and ending up with a group that values and is changed by the treatment process and wants to share it with other people.