“Honest intention will not cure faulty practice.”
Source: Witch Wood (1927), Ch. III "Guests in Calidon Tower"
Help us to complete the source, original and additional information
John Buchan 145
British politician 1875–1940Related quotes

Address as Lord Rector of Edinburgh University, (April 2, 1866), reported in A dictionary of quotations in prose, edited by A. L. Ward (1889).
Attributed

As quoted in USA Today (5 March 1988)
Variant:
Courage is the most important of all the virtues, because without courage you can't practice any other virtue consistently. You can practice any virtue erratically, but nothing consistently without courage.
As quoted in Diversity : Leaders Not Labels (2006) by Stedman Graham, p. 224
On the thematic constraints of Puerto Rican literature in “Luis Rafael Sánchez: Counterpoints" https://ufdc.ufl.edu/UF00096005/00024/14j (Sargasso, 1984)

as quoted in Ernst Ludwig Kirchner und Die 'Brücke: Selbstbildnisse, Künstlerbildnisse, Jutta Hülsewig-Johnen & Egging Björn; Kerber, Bielefeld 2005, p. 174; as quoted by Louise Albiez https://www.researchgate.net/publication/272168564Claire (incl. translation), Brücke und Berlin: 100 Jahre Expressionismus; submitted to the Division of Humanities New College of Florida, Sarasota, Florida, May, 2013 p. 9

On the film The Interpreter, from "Secretary-General's press encounter" (19 April 2005) http://www.un.org/apps/sg/offthecuff.asp?nid=719