Here are 3 different sayings encoded using the same code:
UEX YNTZ UX PISVUA QPUYUQY. UE UX RZVB UY GZLZGZYAZ. UE XZEEVZX ZLZGOERUYW.
XQTZ ERUYD UE UX ERZ LQUAZ QJ WQB.
-- TNGD EKNUY
OQI'GZ N ANGB KRUAR KUVV RNLZ EQ SZ BZNVE KUER.
OQIG SQOJGUZYB ENDZX ARQAQVNEZ JGQT XEGNYWZGX.
I give up!