Prompt
Create a realistic portrait of Robert Fogel, a middle-aged man with a gentle expression, wearing a suit and tie, sitting in a library or study with books and papers around him, representing his work as a historian, professor, and author, specifically in the field of cliometrics and history, with a subtle background hinting at his connection to the University of Chicago, Harvard University, or Cambridge University, in a style that reflects his intellectual and academic persona.
