[...] In other words, each person potentially is the world's best expert on himself and has the best information about himself. What drives a person to live, interact with the environment, his "motivation" if you will, is the overall characteristic of simply being alive. No special concepts are required to understand why people are motivated and active: every person is motivated for no other reason that he is alive. The individual is what he does and comes to know his nature by seeing what he is doing. There is no human nature -- man simply is, and he is nothing else but what he makes of himself.
That's basically the existential credo, I believe. Remember Professor Irwin Corey? He was a comedian who played a mad professor. He gave lectures. And he used to say "If God exists, then anything is possible. If God doesn't exist, then everything is permissible."
The movie "The Ice Harvest" exemplifies the meme idea — because these are characters who are clearly on the existential slide; life has very little meaning for them. Billy Bob said to John, "If you are what you do, and you never do anything, then what the @ # ! * are you?" And then John says, "So what do you want to do?" And Billy Bob says, "I don't know." And so they hatch the plan to commit the crime. It's like a joke setup: "Two guys are sitting in a bar ..."