Here are 3 different sayings encoded using the same code:
YWBT BDBT GLFC MZLLJUBPXY GFL B DMJOX.
JP JPEJB, "UFOE DXBWMXL" JY CXLXOT B UFPSXPWJFPBO HMLBYX BPE MBY UFCX JPWF
ZYX WMLFZAM WMX PXUXYYJWT FG MBSJPA YFCX DBT WF EJYWJPAZJYM NXWDXXP DXBWMXL
DMJUM DJOO CXOW B NLBYY EFFL-QPFN BPE DXBWMXL DMJUM DJOO FPOT CBQX JW CZYMT.
-- CBLQ WDBJP
WMX GJLYW WMJPA DX EF, OXW'Y QJOO BOO WMX OBDTXLY.
-- DC. YMBQXYHXBLX, "MXPLT SJ", HBLW JS
I give up!