He who knows (the Tao) does not (care to) speak (about it); he who is (ever ready to) speak about it does not know it.
He (who knows it) will keep his mouth shut and close the portals (of his nostrils). He will blunt his sharp points and unravel the complications of things; he will attemper his brightness, and bring himself into agreement with the obscurity (of others). This is called 'the Mysterious Agreement.'
(Such an one) cannot be treated familiarly or distantly; he is beyond all consideration of profit or injury; of nobility or meanness:—he is the noblest man under heaven.
About the text, translation & sources
The Chinese text follows our sister site, Longhu Mountain. The English is James Legge’s public-domain translation, first published in 1891, transcribed from the Project Gutenberg edition. Paragraph numbering is omitted; wording, parenthetical explanations and period language are retained. Chinese readings vary between editions.
The Tao Te Ching is traditionally attributed to Laozi. Its date and authorship are debated. Chapter titles are reading aids; they are not part of the ancient Chinese chapter text. The reflection boxes on this site are contemporary editorial questions, distinct from the translation.