As a young man I could not believe that people could give their lives over to those conditions. As an old man, I still can't believe it. What do they do it for? Sex? TV? An automobile on monthly payments? Or children? Children who are just going to do the same things that they did?
Early on, when I was quite young and going from job to job I was foolish enough to sometimes speak to my fellow workers: "Hey, the boss can come in here at any moment and lay all of us off, just like that, don't you realize that?"
They would just look at me. I was posing something that they didn't want to enter their minds.
Now in industry, there are vast layoffs (steel mills dead, technical changes in other factors of the work place). They are layed off by the hundreds of thousands and their faces are stunned:
"I put in 35 years..."
"It ain't right..."
"I don't know what to do..."
They never pay the slaves enough so they can get free, just enough so they can stay alive and come back to work. I could see all this. Why couldn't they? I figured the park bench was just as good or being a barfly was just as good. Why not get there first before they put me there? Why wait?
I just wrote in disgust against it all, it was a relief to get the shit out of my system. And now that I'm here, a so-called professional writer, after giving the first 50 years away, I've found out that there are other disgusts beyond the system.
I remember once, working as a packer in this lighting fixture company, one of the packers suddenly said: "I'll never be free!"
One of the bosses was walking by (his name was Morrie) and he let out this delicious cackle of a laugh, enjoying the fact that this fellow was trapped for life.
So, the luck I finally had in getting out of those places, no matter how long it took, has given me a kind of joy, the jolly joy of the miracle. I now write from an old mind and an old body, long beyond the time when most men would ever think of continuing such a thing, but since I started so late I owe it to myself to continue, and when the words begin to falter and I must be helped up stairways and I can no longer tell a bluebird from a paperclip, I still feel that something in me is going to remember (no matter how far I'm gone) how I've come through the murder and the mess and the moil, to at least a generous way to die.
To not to have entirely wasted one's life seems to be a worthy accomplishment, if only for myself.
yr boy,
Hank
Alternatively: 
 “I don’t think we’re here for anything, we’re just products of evolution. You can say ‘Gee, your life must be pretty bleak if you don’t think there’s a purpose’ but I’m anticipating a good lunch.” 
 - Dr. James Watson
Letter to John Martin 1986