Answer:
Let's complete the sentence:
In contrast to his teacher Plato, the philosopher Aristotle believed that the best form of government was a constitutional monarchy.
Plato and Aristotle, two prominent ancient Greek philosophers, had differing views on governance. Plato leaned toward an idealized form of government led by philosopher-kings, while Aristotle favored a more pragmatic approach with his concept of a constitutional monarchy. It's fascinating how these historical figures continue to inspire debates about political philosophy!