“Those who speak know nothing;
Those who know are silent.”
These words, as I am told,
Were spoken by Lao Tzu.
If we are to believe that Lao Ttzu
Was himself one who knew,
How comes it that he wrote a book
Of five thousand words?
Po Chu-I
http://www.poemhunter.com/poem/the-philosopher-lao-tzu/
