I’m not sure who said it, though it sounds like it came from Star Trek:
“Uzi dwihuilu akluhci nxy mht ahci kt qkji kl ux oi mxtuktyhqqn jihwjyq nxy skqq zhci xti.”
“The greatest mistake you can make in life is to be continually fearful you will make one.” (Okay, so it was one of the cryptograms in my crossword puzzle book… but doesn’t it sound like a foreign or alien language?)
