Here are 3 different sayings encoded using the same code:
SPOYTSC QP SBBIQ UBEPUMTSC WQ POYBU ZBPZLB'Q YWATOQ.
-- MWUH ODWTS
FPVU APFEUTBSI OWHBQ XYPXPLWOB EUPM QOUWSCBUQ.
FPVU MPOTGBQ EPU IPTSC DYWOBGBU CPPI IBBI FPV MWF YWGB TS MTSI DTLL AB
MTQTSOBUZUBOBI AF QPMBAPIF.
I give up!