Here are 3 different sayings encoded using the same code:
QCS QMMY, QCS QMBU.
-- OTIICFTOHKJ
T IMVS-NMBSMRRUV IMGUL MVU ACII TXXUTB JMMV.
QKZ RHU VUSTRCGUJ TR TVZ XBCOU.
VUWR NBCLTZ ACII VMR QU ZMKB IKOYZ LTZ. TJ T FTRRUB MN NTOR, ZMK LMV'R
HTGU T IKOYZ LTZ RHCJ ZUTB.
I give up!