Here are 3 different sayings encoded using the same code:
A DASX RK DBR LHDHXO SHDX(DU)
-- NF LQAZSXO VHLJXGO
A SABFXZ BQR SRRJO SHJX A KZXGLQ GRNSXUAG HO XTXLYDXV HG QHO PSALX.
DQX UXDAURZPQROHO SHDX(DU)
-- NF KZAGI JAKJA
A UAG DYZGO HGDR A NYW AGV QHO KAUHSF WXDO AGGRFXV.
SRZV RK DQX ZHGWO SHDX(DU)
-- NF M. Z. Z. DRSJHXG
ORUX WYFO DAJX A SRGW EALADHRG DR DQZRB A ZHGW HGDR A ERSLAGR.
QAUSXD SHDX(DU)
-- NF BU. OQAJXOPXAZX
A LRSSXWX ODYVXGD RG EALADHRG BHDQ KAUHSF PZRNSXUO, A OLZXBF
WHZS-KZHXGV AGV A URDQXZ BQR BRG'D ALD QXZ AWX.
JHGVGXOO HO A SAGWYAWX BQHLQ DQX VXAK LAG QXAZ AGV DQX NSHGV LAG ZXAV.
-- UAZJ DBAHG
VRG'D PSAG AGF QAODF UREXO. FRY'SS NX XEHLDXV ORRG AGFBAF.
I give up!