The sentence that reversion is the movement of Dao means that things always turn to its opposite when they reach the extreme.

The only real security that a man will have in this world is () of knowledge, experience, and ability. A: Reversion B: reservation C: reserve D: Reverse

"大曰逝, 逝曰远, 远曰反" It mainly refers to A: Non-action B: Being and non-being C: Reversion D: N/A

"天下皆知美之为美，斯恶矣;天下皆知美之为美，斯恶矣"Itmainlyrefersto A: Non-action B: Beingandnon-being C: Reversion D: N/A