The worst death for anyone is to lose the center of his being, the thing he really is. Retirement is the filthiest word in the language. Whether by choice or by fate, to retire from what you do - and makes you what you are - is to back up into the grave.
I have enjoyed greatly the second blooming that comes when you finish the life of the emotions and of personal relations; and suddenly find - at the age of fifty, say - that a whole new life has opened before you, filled with things you can think about, study, or read about...It is as if a fresh sap of ideas and thoughts was rising in you.
It's a generational project just to get America to live up fully to its ideals and to have the kind of society where everybody has a shot, and every kid is getting a good education, and people are getting living wages, and they have decent retirement.
You need some insecurity if you're an actor. It keeps the pot boiling. I haven't yet started to think about retiring. I was shocked when I heard about Paul Newman retiring at age 82. Most actors just fade away like old soldiers.