Original: According to tradition , it was written around the 6th century BC by the sage Laozi ( or Lao Tzu , '' Old Master '' ) , a record-keeper at the Zhou Dynasty court , by whose name the text is known in China .
Simplified: Tao Te Ching ( Chinese : ) is the Chinese Tanmoy Laozi ( or Lao Tzu , which literally means '' old master '' ) .