Who is Brutus's foil in Julius Caesar?

In Shakespeare's "Julius Caesar," Brutus's primary foil is Cassius. A foil is a character that contrasts with another character—typically the protagonist—to highlight particular qualities of the other character.

1. Contrast in Motivation: Brutus is portrayed as an honorable man with a strong ethical foundation, motivated by his idealism and love for Rome. He values the greater good over personal loyalty. In contrast, Cassius is more practical and self-serving, driven by jealousy and personal grievances against Caesar.

2. Different Approaches to Leadership: Brutus often takes a moral high ground in their plot against Caesar, showcasing his integrity and belief in the republic. Cassius, on the other hand, relies on manipulation and personal persuasion, demonstrating a more calculating and cynical attitude.

3. Philosophical Beliefs: Brutus embodies Stoic philosophy, focusing on reason and virtue, while Cassius displays a more hedonistic view of life, valuing wealth and power.

This contrast between Brutus and Cassius not only highlights Brutus's character traits but also serves to propel the themes of morality, honor, and the consequences of political action throughout the play. Their differing motivations and methods ultimately lead to differing outcomes in the unfolding tragedy.