TLS, one page, 8.5 x 11, Cornell University letterhead, March 5, 1993. Letter to an admirer. In part: “I’m afraid I must disagree with the distinction you make, because I know of no instances, not a single one, of ‘supernatural abilities’ convincingly demonstrated—that is, not a lie, or a misapprehension or a hoax—among any of us humans, saints or sinners. If you know of such cases, perhaps you could send me the one you consider most compelling.” In fine condition. Accompanied by the original mailing envelope. RR Auction COA.