I appreciate very deeply what Arthur Hummel, former Library of Congress Director, had to say about the Daodejing.
He wrote that:
The Daoedejing was written in the morning of the human race, and still bears the freshness of the morning upon it. It exhibits a rush of lanugage, a boldness and exuberance of expresion for which paradox is the only adequate form....For the Daoists, Reality was beyond measurement, but not beyond apprehension by a mind that is still. The book's greatest gift, in my view, is its mind-stretching quality; it challenges us at every turn to expand our view of life's possibilities.
From the Foreword to Lao Tsu/Tao Teh Ching (St. John's University Press, 1961)