Here are 3 different sayings encoded using the same code:
JZC LIWW VQIF OZFSJ UJ QF IWWSVQW QXEIZF.
JZC GQNS Q YSPCEQEIZF AZY USIFV EGZYZCVGWJ YSWIQUWS QFB EYCDELZYEGJ.
Q PIEJ EGQE IE'D EZEQWWJ CFBSDSYNSB.
JZCY EQWSFED LIWW US YSXZVFITSB QFB DCIEQUWJ YSLQYBSB.
I give up!