Here are 3 different sayings encoded using the same code:
IC ARK BYRRAE KROAM NKYSIRL Y ZAAG ATKN YRS ATKN YLYIR, EDKNK IQ RA UQK
IR NKYSIRL IE YE YFF.
-- AQBYN PIFSK
Y BFYQQIB IQ QAVKEDIRL EDYE KTKNMARK PYREQ EA DYTK NKYS
YRS RAZASM PYREQ EA NKYS.
-- VYNG EPYIR, "EDK SIQYJJKYNYRBK AC FIEKNYEUNK"
SAR'E FKE MAUN VIRS PYRSKN -- IE'Q EAA FIEEFK EA ZK FKE AUE YFARK.
I give up!