“ no man ought to write at all, or even to speak at all, unless he thinks that he is in truth and the other man in error. ”
 G. K. Chesterton, Heretics (1905). copy citation

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Author G. K. Chesterton
Source Heretics
Topic writing truth
Date 1905
Language English
Reference
Note
Weblink http://www.gutenberg.org/files/470/470-h/470-h.htm

Context

“but you overlook an obvious difference. I am dogmatic and right, and Carlyle is dogmatic and wrong." The strong humour of the remark ought not to disguise from us its everlasting seriousness and common sense; no man ought to write at all, or even to speak at all, unless he thinks that he is in truth and the other man in error. In similar style, I hold that I am dogmatic and right, while Mr. Shaw is dogmatic and wrong. But my main point, at present, is to notice that the chief among these writers I have discussed do most sanely and courageously offer themselves as dogmatists, as founders of a system.” source