Here are 3 different sayings encoded using the same code:
P, HT HM GFOGEEGBT
TP YXUG X RHXBT'M MTIGBRTY; VKT HT HM TQIXBBPKM
TP KMG HT EHDG X RHXBT.
-- MYXDGMZGXIG, "SGXMKIG LPI SGXMKIG", HH, 2
NYQ HM HT TYXT NG IGCPHOG XT X VHITY XBA RIHGUG XT X LKBGIXE? HT HM VGOXKMG NG
XIG BPT TYG ZGIMPB HBUPEUGA.
-- SXID TNXHB, "ZKAA'BYGXA NHEMPB'M OXEGBAXI"
HL TNP ZGPZEG EPUG GXOY PTYGI, TYGIG OXB VG BP YXZZQ GBA TP HT.
-- GIBGMT YGSHBRNXQ
I give up!