Oscar Wilde's "Importance of Being Earnest" from a recording by Sir John Gielgud: "I am sick to death of cleverness. Everybody is clever nowadays. You can't go anywhere without meeting clever people." - Act 1 I believe.
It is 29.30 in to this play from 1953:
"Breakthrough: An Amazing Experiment In Electronic Communication With The Dead" by Latvian psychologist Konstantin Raudive at about the 6.24min mark - Regards,