Logan Pearsall Smith (18 October 1865 – 2 March 1946) was an American-born British essayist and critic. Harvard and Oxford educated, he was known for his aphorisms and epigrams, and was an expert on 17th Century divines. His Words and Idioms made him an authority on correct English language usage. He wrote his autobiography, Unforgotten Years, in 1938.
You may find more from Logan Pearsall Smith on Wikiquote