"All right," Eric agreed. "If you were me, and your wife were sick, desperately so, with no hope of recovery, would you leave her? Or would you stay … - Philip K. Dick

Drug misuse is not a disease, it is a decision, like the decision to step out in front of a moving car. You would call that not a disease but an error of judgment.

You must beware of seeing malice behind accidental injury.

As always, when the opportunity arose, Joe took a long, astute look at the girl whom, if he could have managed it, he would have had as his mistress, or, even better, his wife. It did not seem possible that Wendy Wright had been born out of blood and internal organs like other people. In proximity to her he felt himself to be a squat, oily, sweating, uneducated nurt whose stomach rattled and whose breath wheezed. Near her he became aware of the physical mechanisms which kept him alive; within him machinery, pipes and valves and gas-compressors and fan belts had to chug away at a losing task, a labor ultimately doomed. Seeing her face, he discovered that his own consisted of a garish mask; noticing her body made him feel like a low-class windup toy. All her colors possessed a subtle quality, indirectly lit. Her eyes, those green and tumbled stones, looked impassively at everything; he had never seen fear in them, or aversion, or contempt. What she saw she accepted. Generally she seemed calm. But more than that she struck him as being durable, untroubled and cool, not subject to wear, or to fatigue, or to physical illness and decline. Probably she was twenty-five or -six, but he could not imagine her looking younger, and certainly she would never look older. She had too much control over herself and outside reality for that.