Tao Te Ching Chapter 2: Relativity｜Original Text & Core Ideas When everyone in the world knows beauty as beauty, then ugliness already exists. When everyone knows good as good, then not-good already exists. Being and non-being give birth to each other; Difficult and easy complete each other; Long and short contrast each other; High and low incline toward each other; Sound and tone harmonize with each other; Front and back follow each other. Therefore, the sage acts through no