caption: The image shows a drawing of a man with a beard and a hat on his head, drawn on a piece of paper. The man is believed to be the head of an aristotle, as indicated by the text at the bottom of the image which reads "Leonardo da Vinci". He has a stern expression on his face, with his eyes looking off to the side and his mouth slightly open. His hair is combed back and his hands are clasped in front of him. He is wearing a long, dark robe with a high collar and a belt around his waist. His facial features are detailed and his posture is upright and dignified.