Here are 3 different sayings encoded using the same code:
GHF RKUKQ SPUK TH CSPRYK PRGTSNRY GHF YHT FV NR TSK XNMMLK HE TSK RNYST
TH ZQNTK.
-- BPFL DKLLHZ
GHFQ PNX NB SNYS PRM TH TSK QNYST.
GHF SPUK P BTQHRY PVVKPL EHQ XKXDKQB HE TSK HVVHBNTK BKA.
I give up!