"I guarantee you that thousands, hearing of Robin’s death, asked how he could do it when he had everything: fame, wealth, adulation, family love. And another supposed insulator against the worst of the blues, plenty of work. No combination of those adds up to insurance. And the hectic, nerve-wracking ups and downs of fortune in show business are, of course, a major factor for emotional disequilibrium. … I know Robin knew this. His death recalled a moment with him years ago in a small club. He came off stage after bringing a cheering audience to its feet. “Isn’t it funny how I can bring great happiness to all these people,” he said. “But not to myself.” The non-actor has a major advantage because it’s harder to hide the symptoms. The actor knows how to act."
January 1, 1970
https://en.wikiquote.org/wiki/Robin_Williams