That we should practice what we preach is generally admitted; but anyone who preaches what he and his hearers practice must incur the gravest moral disapprobation.
Source: In The Ultimate Success Quotations Library, 1997.
-- Logan Pearsall Smith, ( 1865-1946), US-English essayist, editor, anthologist; He was a defender of the traditional English language and literary values; wrote Milton and His Modern Critics, 1940.