Answer: The correct answer is : His reign was very philosophical, he wrote a series of books called "Meditations". He divided his empire into two parts and shared power with a co-emperor. He was considered one of the five good emperors, because they ruled wisely, with fair policies, they were benign, they allowed freedom in many aspects and they were very popular. Marco Aurelio was quite knowledgeable about the law, considered the most authoritative in legal matters, the most prudent and the most just.