Prompt
Generate a realistic image of William A. Nitze, a middle-aged American man, dressed in formal attire, possibly a suit and tie, standing in front of a backdrop that subtly suggests his connection to environmental policy, such as a faint image of the Earth or a leafy pattern. He should be depicted with a confident and professional demeanor, possibly with a slight smile. Incorporate elements that reflect his educational background, such as a Harvard University pin or a book related to environmental law. The style should be a realistic portrait, suitable for a biography or professional profile.