Gene Wolfe wrote in an introduction to Episodes of the Argo that "[Lafferty may be] the most original writer in the history of literature"; Michael Swanwick has written that "if there were no Lafferty, we would lack the imagination to invent him", this is quoted on the back cover of the original edition of Lafferty in Orbit; Neil Gaiman has said that "[Lafferty's] stories are without precedent"; Harlan Ellison wrote that "Lafferty defies categorization; his work is unlike anyone else's"... See "Quotations about Lafferty" for more: http://en.wikiquote.org/wiki/R._A._Lafferty
