“He who knows does not speak; he who speaks does not know.”
Laozi book Tao Te Ching
Variant: Those who know, do not speak, those who speak, do not know.
Source: Tao Te Ching, Ch. 56
Wer fremde Sprachen nicht kennt, weiß nichts von seiner eigenen.
Maxim 91
Maxims and Reflections (1833)
“He who knows does not speak; he who speaks does not know.”
Laozi book Tao Te Ching
Variant: Those who know, do not speak, those who speak, do not know.
Source: Tao Te Ching, Ch. 56
Jacques Derrida (1930–2004) French philosopher (1930-2004)
Derrida Jacques, Elisabeth Weber (1995), Points...: Interviews, 1974-1994. p. 115
“He who does not love his own language is worse than an animal and a smelly fish.”
José Rizal (1861–1896) Filipino writer, ophthalmologist, polyglot and nationalist
This has long been attributed to Rizal as part of a poem, titled Sa Aking Mga Kabata (To My Fellow Children), he wrote at the age of 8, as quoted in " Community Celebrates Rizal Day" in Asian Journal USA (31 December 2007) http://asianjournalusa.com/community-celebrates-rizal-day-p3868-95.htm, but this has become disputed as highly unlikely in "Did young Rizal really write poem for children?" by Ambeth R. Ocampo, in Philippine Daily Inquirer (22 August 22 2011) http://newsinfo.inquirer.net/45479/did-young-rizal-really-write-poem-for-children <br class="br">Disputed
“He would always speak the language of the heart with an awkward foreign accent.”
Orson Scott Card book Shadow of the Hegemon
Source: Shadow of the Hegemon
“My subconscious speaks in a foreign language.”
Deb Caletti (1963) American writer
Source: The Six Rules of Maybe
G. K. Chesterton (1874–1936) English mystery novelist and Christian apologist
Source: The Autobiography of G.K. Chesterton http://books.google.com/books?id=9_m6AAAAIAAJ&q=%22Half+the+trouble+about+the+modern+man+is+that+he+is+educated+to+understand+foreign+languages+and+misunderstand+foreigners%22&pg=PA322#v=onepage (1936)
“He who knows the truth and does not speak it is a miserable coward.”
Julius Streicher (1885–1946) German politician
Alternate version: He who knows the truth and does not speak it truly is a miserable creature.
Quoted in "Julius Streicher" - Page 211 - By Randall L. Bytwerk
Benjamin Disraeli (1804–1881) British Conservative politician, writer, aristocrat and Prime Minister
Source: Speech at banquet given by the city of Glasgow to Disraeli on his inauguration as Lord Rector of Glasgow University (19 November 1870), cited in Wit and Wisdom of Benjamin Disraeli, Collected from his Writings and Speeches (1881), p. 16.