Here are 3 different sayings encoded using the same code:
XCG UCS VJNF JLQJU IBG.
MF IWFF JUD CKFU JUD MWFFHX! FURCX! TVQUAL SCU'T AFT JUX MFTTFW LC
AFT GLFD TC QT.
JL IBQFL TC SJUTCU MCXL JWF SF TC TVF ACDL; TVFX PQBB GL ICW TVFQW LKCWT.
-- LVJPFLKFJWF, "PQUA BFJW"
I give up!