道德经第二章
天下皆知美之为美，斯恶已；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，前后相随。
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。
唯弗居，是以不去。
译文:
Tao Te Ching (Laotzu), Chapter 2
It is because every one under Heaven recognizes beauty as beauty, that the idea of ugliness exists.
And equally if every one recognized virtue as virtue, this would merely create the conceptions of wickedness.
For truly 'Being and Not-being grow out of one another;
Difficult and easy complete one another;
Long and short test one another;
High and low determine one another;
Pitch and mode give harmony to one another;
Front and back give sequence to one another.
Therefore the Sage relies on actionless activity, carries on wordless teaching;
He works upon the myriad creatures, but does not disown them;
He rears them, but does not lay claim to them;
He controls them, but does not lean upon them;
He achieves his aim, but does not call attention to what he has done.
And for the very reason of not calling attention to his achievement,
He is not ejected from the fruition of what he has done.