Qin SHi Huang unifies China with a common Language. If not for him, China will still not be as big as it now. Like Alexandra the great, all great man has an ego for power and authority. They dare to chase after their "ego" which made them outstanding. While others just joined the "NATO - No action talk only" clubs. China has history of very young emperors. Of course some are Superb leaders while most are betrayed due to their naiveness. Well, the Last Emperor was also a young boy... We will never know why he made the terracotta and monuments. But we know he made the Great Wall which is the only thing visible on Earth from outer space.