"It's the same voice thought that… you're standing at a precipice and you look down, there's a voice and it's a little quiet voice that goes, 'Jump,'" Williams told Diane Sawyer. "The same voice that goes, 'Just one.' … And the idea of just one for someone who has no tolerance for it, that's not the possibility."
When asked why he relapsed, Robin answered: "It's [addiction] — not caused by anything, it's just there… It waits. It lays in wait for the time when you think, 'It's fine now, I'm OK.' Then, the next thing you know, it's not OK. Then you realize, 'Where am I? I didn't realize I was in Cleveland.'"
"Cocaine for me was a place to hide," Williams told People in 1988. "Most people get hyper on coke. It slowed me down. Sometimes it made me paranoid and impotent, but mostly it just made me withdrawn. And I was so crazy back then — working all day, partying most of the night — I needed an excuse not to talk. I needed quiet times and I used coke to get them."
Referenced from:
https://celebrity.yahoo.com/blogs/c...of-apparent-suicide-at-63-231414092.html