To know people, you have to know them by their behavior.In society, we can hear what they say, they show their words but hide their actions.And in history, the veil is lifted and we will judge them by their actions.And the speeches that have been handed down can even help us understand.Because we can compare their words and deeds, we can not only see their appearance, but also see their actual appearance.The more disguises they have, the more we can learn about them.