Julius Caesar demonstrated some characteristics that could be associated with narcissism. He had a strong desire for power, a high level of ambition, and a considerable concern with his public image. We should also take into consideration that these traits were common among Roman political figures and military leaders of the time.

Additionally, many of our understandings about Caesar's personality and actions come from historical accounts, some of which were written by his contemporaries who had their own political agendas, and others were written long after his death. Therefore, these accounts may not provide a completely accurate or unbiased view of his personality.

I'd like to note that the moral and ethical standards for the upper echelons of Roman society was very different than today's western standards. Different traits were championed. For example, "De Bello Gallico" (On the Gallic War,) is not a neutral historical account; it was written by Caesar for a Roman audience and aimed to defend and promote his actions. His conquest of Gaul would amount to genocide in a modern context but the Roman Public (the common people), at the time didn't seem to mind too much and thought his actions heroic.