The ten thousand things flourish and then each returns to the root from which it came. Returning to the root is stillness. Through stillness each fulfils its destiny.
Under heaven all can see beauty as beauty only because there is ugliness. All can know good as good only because there is evil. Therefore having and not having arise together. Difficult and easy complement each other. Long and short contrast each other. High and low rest upon each other. Voice and sound harmonize each other. Front and back follow one another.
So sometimes things are ahead and sometimes they are behind; Sometimes breathing is hard, sometimes it comes easily; Sometimes there is strength and sometimes weakness; Sometimes one is up and sometimes down. Therefore the sage avoids extremes, excesses, and complacency.
What is a good man but a bad man's teacher? What is a bad man but a good man's job? If you do not remember this, You will get lost, No matter how intelligent you are. It is the great secret.
If a great country yields to a small country, it will conquer the small country. If a small country yields to a great country, it will be conquered by the great country.
Arms are instruments of ill omen.... When one is compelled to use them, it is best to do so without relish. There is no glory in victory, and to glorify it despite this is to exult in the killing of men.... When great numbers of people are killed, one should weep over them with sorrow. When victorious in war, one should observe mourning rites.
Acting without design, occupying oneself without making a business of it, finding the great in what is small and the many in the few, repaying injury with kindness, effecting difficult things while they are easy, and managing great things in their beginnings; this is the method of Tao.