Here are 3 different sayings encoded using the same code:
PKY MXBB OHFHFAHO, MTQWKE, DKM QDH JOHTJGYB AYWXEHWW KG QDH
TAHOEHQQP GTFXBP MTW GXOWQ AOKYZDQ QK FP EKQXIH AP QDH JHNQD MDXID QDH
NTOWBHP DTJ WYEV XEQK QDH AYQQHO YNKE T DKQ JTP.
-- WDHOBKIV DKBFHW
HCHIYQXLH TAXBXQP XW NOKFXEHEQ XE PKYO FTVH-YN.
GKO IKYOTZH FKYEQHQD MXQD KIITWXKE.
-- MXBBXTF WDTVHWNHTOH, "VXEZ RKDE"
I give up!