Here are 3 different sayings encoded using the same code:
GAYSJYEJ EAKP, YAR VAAOE!
D: TMHR'E RMJ SZBBJLJYGJ VJRTJJJY KEW HYS RMJ NLHB QJPPJWZY?
H: RMJ NLHB QJPPJWZY LJPLJEJYRJS GKRRZYN JSNJ RJGMYAWANC BAL ZRE RZUJ.
ZY RMJ BZLER PWHGJ, NAS UHSJ ZSZARE; RMZE THE BAL PLHGRZGJ; RMJY MJ UHSJ
EGMAAW VAHLSE.
-- UHLO RTHZY
I give up!