"After severely injuring my leg and being prescribed a cane, I can safely say that prosthetics make you into somebody you're not. Yes, it might make it easier to get around. But, you know what? So does a car."
Well, you'll reach your destination quickly and it's bad for your environment.
In seriousness, the stigmatization of medicating anxiety and depression is very unhealthy. While pills shouldn't be the first or only option, implying someone is weak for using meds is plain wrongheaded.
"No son, I'm not going to give you painkillers while you pass these gallstones. You see, that would change your state of mind and make you a different person. Plus, if you fight through the agony it'll make you a better human. It's natural, y'see."
Think his point is that heroin is generally not considered a good thing, although it can obviously have some nice effects.