
Source: How to Read a Book: The Classic Guide to Intelligent Reading
He that knows not what the world is, knows not where he is himself. He that knows not for what he was made, knows not what he is nor what the world is.
VIII, 52
Meditations (c. 121–180 AD), Book VIII
Source: How to Read a Book: The Classic Guide to Intelligent Reading
“He who knows does not speak; he who speaks does not know.”
Variant: Those who know, do not speak, those who speak, do not know.
Source: Tao Te Ching, Ch. 56
Prior to The Battle of East and West: Ricky Hatton vs. Manny Pacquiao
As quoted in "Pacquiao-Hatton Worthy of Grand Setting" http://sports.yahoo.com/box/news?slug=ro-pachat033109 Yahoo! Sports (2009-03-31)
“He, who does not know the entries, the exits will fail him.”
[Baqir Sharīf al-Qurashi, The life of Imam Muhammad al-Jawad, Wonderful Maxims and Arts, 2005]
“He who knows the world will not be too bashful. He who knows himself will not be impudent.”
The Dignity of Human Nature (1754)
Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 17.
“What I say to myself - who says it? Who does he say it to?”
Lo que me digo, ¿quién lo dice?
Voces (1943)
Note to Stanza 29 part 4
Spiritual Canticle of The Soul and The Bridegroom, Notes to the Stanzas