Crack in the early 1980s or mid 1980s I'm sorry is that one of the worst myth is that one hit and you're addicted for life. We saw that in 1980s and we're seeing it again with methamphetamine today, one hit and you're addicted and it simply not true, addiction requires work not the people should go out and experiment or do these themselves but the fact is that's a myth and the concern is that, it's dangerous because when people perpetuates that myths and then when young people are people actually try methamphetamine or crack cocaine and find that, that doesn't happen to them.

My critique of how we deal with drugs in society is just that - that we use these anecdotes to apply to everyone and the anecdotes are not representative.

People rarely die from heroin alone, it's the combination that's deadly. Maybe we should blast that out as a public health education message. That way at least we're keeping people safe.

Our ability to study the brain has been limited because of our tools and our tools have only allowed us to look at one neurotransmitter and we haven't looked so much into co-localization and co-release of transmitters. Our thinking is hampered by our tools.

I have three boys. And I wanted to make sure it connected with them and then those guys who grew up like me, in environments like me.And then I knew something about science that your New York Times reader would be interested in. So I was thinking about it in multiple ways: I'll connect with the people who grew up like me first, and then the New York Times reader will be interested in the science because it's so good and they want to be "in the know."

Looking at the data and at my drug use and evaluating it carefully just let me see that I wasn't special, but my drug use challenged what I thought about cocaine. Because I would accept when I would say, "What happened to that person?" and someone would say, "They started using cocaine...they went downhill..." I would just accept that, even though I had a different experience and all these other people had a different experience. But I would throw that out because I thought my experience was an aberration.

I am glad that people are trying to have a rational conversation about drugs.