“The doctrine of toleration requires a positive as well as a negative statement. It is not only wrong to burn a man on account of his creed, but it is right to encourage the open avowal and defence of every opinion sincerely maintained. Every man who says frankly and fully what he thinks is so far doing a public service. We should be grateful to him for attacking most unsparingly our most cherished opinions.”
The Nineteenth Century, vol. 13 (1883) p. 665
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Leslie Stephen 11
British author, literary critic, and first editor of the Di… 1832–1904Related quotes

“Every man has a right to his own opinion, but no man has a right to be wrong in his facts.”
Deming Headlight (New Mexico), 6 January 1950, as cited in the Yale Book of Modern Proverbs and at There Are Opinions, And Then There Are Facts; Freakonomics blog post by Fred R. Shapiro http://www.freakonomics.com/2011/08/18/there-are-opinions-and-then-there-are-facts/ (18 August 2011)

The History of the Quakers (1762)
Context: Being of opinion that the doctrine and history of so extraordinary a sect as the Quakers were very well deserving the curiosity of every thinking man, I resolved to make myself acquainted with them, and for that purpose made a visit to one of the most eminent of that sect in England, who, after having been in trade for thirty years, had the wisdom to prescribe limits to his fortune, and to his desires, and withdrew to a small but pleasant retirement in the country, not many miles from London. Here it was that I made him my visit. His house was small, but neatly built, and with no other ornaments but those of decency and convenience.

Source: 1910s, Why Men Fight https://en.wikisource.org/wiki/Why_Men_Fight (1917), pp. 48-50

Immortality
1870s, Society and Solitude (1870), Books, Letters and Social Aims http://www.rwe.org/comm/index.php?option=com_content&task=category§ionid=5&id=74&Itemid=149 (1876)
Laura Riding and Harry Kemp from The Left Heresy in Literature and Life (London: Methuen, 1939)