History paints the human heart.

Taken at face value, the line suggests that the study of history is not merely a record of events but a revealing portrait of human motives—ambition, fear, vanity, loyalty, and self-interest. “Paints” implies a vivid, interpretive representation: history, through the accumulated evidence of actions and consequences, renders the inner life of individuals and societies visible. Attributed to Napoleon, the sentiment also fits a statesman’s perspective: political and military decisions expose character under pressure, and the patterns of past conduct become a kind of moral psychology. The aphorism elevates history as a guide to understanding people, not just dates and battles.