"I'm not a prophet or a stone aged man, just a mortal with potential of a superman. I'm living on"

In this quote, David Bowie is acknowledging that he is not a prophet or a primitive guy, but rather a routine human being with the prospective to achieve achievement. He compares himself to a mortal with the capacity of a superman, suggesting that he has the capability to do amazing things. Despite this capacity, he recognizes that he is still just a mortal, restricted by his humanity. However, he ends the quote by stating that he is still residing on, suggesting that he will continue to strive towards reaching his full capacity and making an enduring impact on the world.