What does Brutus mean when he compares Caesar to a serpent's egg?

When Brutus compares Caesar to a serpent's egg, he is highlighting the idea that while Caesar may currently appear harmless or unthreatening, he possesses the potential to become dangerous in the future. This metaphor suggests that if left unchecked, Caesar’s ambitions and power could grow, resulting in significant harm to the state. The imagery of a serpent’s egg conveys the concept that something may seem small and innocuous at first but can develop into a formidable threat if allowed to hatch and grow. This perspective encapsulates Brutus's concern for the future of Rome and the necessity of acting before the situation escalates.