Quoted in Interview with pianist Leon Fleisher http://www.examiner.com/article/interview-with-pianist-leon-fleisher by Elijah Ho (October 1, 2014)
“He who speaks without modesty will find it difficult to make his words good.”
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Confucius 269
Chinese teacher, editor, politician, and philosopher -551–-479 BCRelated quotes

“He who makes songs without feeling
Spoils both his words and his music.”
Qui de sentement ne fait,
Son dit et son chant contrefait.
"Remede de Fortune", line 407; translation from Josiah Fisk and Jeff Nichols (eds.) Composers on Music (Boston, Northeastern University Press, 1997) p. 5.
Richard Bryan McDaniel. Zen Masters of Japan. The Second Step East. Rutland, Vermont: Tuttle Publishing, 2014. p. 122.

“It is so difficult – at least, I find it difficult – to understand people who speak the truth.”
Source: A Room with a View (1908), Ch.1

Source: On the Mystical Body of Christ, p.421

“The child speaks words with his memory long before he speaks them with his tongue.”

Hercule Poirot’s Early Cases (1974)
“When God would make His name known to mankind, He could find no better word than "I AM."”
The Pursuit of God (1957)