Why according to Machiavelli must a person sometimes act as a beast?

Machiavelli believed that sometimes a ruler needs to act in a ruthless or merciless manner in order to maintain power and stability in a state. This may involve using force, deception, or cruelty to achieve desired outcomes or to prevent chaos and disorder. Such actions can be seen as necessary for a ruler to navigate the complexities of politics and ensure the survival of their state.