Original Chinese text. The navigation is in English; this edition does not include an English translation. Read it as historical and cultural material, not as a factual prediction or professional advice.

第一章

道可道，非常道；名可名，非常名。无名，天地之始；有名，万物之母。故常无欲，以观其妙；常有欲，以观其徼。此两者同出而异名，同谓之玄。玄之又玄，众妙之门。