天下皆知美之为美，斯恶矣；皆知善之为善，斯不善已。故有无相生，难易相成，长短相形，高下相倾，音声相和，前後相随。是以圣人处无为之事，行不言之教。万物作焉而不辞。生而不有，为而不恃，功成而弗居。夫唯弗居，是以不去。

Chapter 2: 有无相生

With appreciation of beauty; the concept of ugliness is formed. When kindness is known; the wicked arises. Without any contrast, there cannot be any concept of length, height, sound, or directions. The wise takes the doctrine of noninterference, and let things take their own course. An essence & nonexistence, are mutually reciprocal of each other. To give & not to have, nurture instead of neglect, achievements & not acknowledgements. The wise seeks not recognition, and as such nothing can be taken away.

Correlation of contrast 

Creatures that develops cognition; forms perception, & on that basis, the foundation of worth is shaped. The concept; mutually reciprocal; relatively of opposite – does not mean that everything is relative & directly in contrast. One needs to differentiate, the correlation of contrast, and seek the common thread that binds them.

(inaction & doing nothing must be understood as no unnatural action rather than complete passivity)