Here are 3 different sayings encoded using the same code:
QON TDXX DMWRPDS UOAR AOMRQ OP G UAGXX HDRFR OK XGMJ.
QON WGLR G PRHNSGSDOM KOP ERDMZ SWOPONZWXQ PRXDGEXR GMJ SPNUSTOPSWQ.
G HDSQ SWGS DS'U SOSGXXQ NMJRURPLRJ.
SOJGQ DU SWR KDPUS JGQ OK SWR PRUS OK SWR ARUU.
I give up!