I think Emperor Yang Di is a good emperor. Let's talk about our own judgment.

The ultimate beneficiary is indeed a large family, but the biggest opposition is "the dead song of the directionless Liaodong waves." Most of the farmers in Shandong, Hebei and Central China are forced by life or the people at the bottom, such as Dou Jiande, Wei, Zhai Rang, Fu Gongyou and Du Fu. Li Tang, representing the big family, finally won the fruits of victory, but if these humble farmers had not worked hard, would Li Tang have succeeded in the end? It is not smoke everywhere that makes Yang Guang lose hope and go to Jiangdu. He stayed in Chang 'an and occupied Guanzhong. I promise Tang Gaozu won't move.

If I can meet him before the deadline of the Grand Canal, I will die for him. After Koryo's defeat, I will stay in his barracks. But if he starts his second expedition to North Korea, I will not hesitate to choose to take refuge in the rebels and confront him.

He is a pity hero, just like a failed Emperor Taizong. The two have similar experiences and face similar difficulties. Yang guang put down the thunder, let Li Shimin know the power of civilians. "The people are more valuable than the monarch." When the people are poor, the country should not be too anxious.

But he is not a good emperor. Although his starting point is for his people from generation to generation, he is wrong, and no one can clean up this disaster that has reduced the population of the whole country by more than half.