motto
/ˈmɔtəu; `mɑto/ n
(pl ~es)
1 short sentence or phrase chosen and used as a guide or rule of behaviour or as an expression of the aims or ideals of a family, a country, an institution, etc 箴言; 格言; 座右铭
My motto is: `Live each day as it comes.' 我的座右铭是: ｀有一天过一天.＇
What's your school motto? 你们校训是什麽?
2 (esp Brit) witty remark or riddle or short saying printed on a piece of paper, esp inside a Christmas cracker 隽语、 谜语或谚语的纸签（尤指圣诞节彩包爆竹中的）.