上自虞、夏、殷、周，固不程督，禽獸畜之，不比為人。 From Shun through Zhou no sage tried to govern them like Chinese farmers—they were herded as the wild creatures beyond the pale.
夫不上觀虞、夏、殷、周之統，而下循近世之失，此臣之所以大恐，百姓所疾苦也。 Ignore the mirror of antiquity and repeat Qin's blunder—that is what I dread, and what the people cannot endure.