What does Polybius think about the checks and balances in the Roman Constitution?

Polybius viewed the checks and balances in the Roman Constitution as a key factor in its stability and success. He believed that the combination of monarchy (in the consuls), aristocracy (in the Senate), and democracy (in the assemblies) created a system where each part could limit the powers of the others, preventing any single entity from becoming too powerful. This balance, according to Polybius, was essential for maintaining order and protecting the state from tyranny. Overall, he regarded this mixed constitution as a model for governance that contributed significantly to Rome's resilience and longevity.