a merry heart goes all the way.
心旷神怡，事事顺利。
a miss is as good as a mile.
失之毫厘，差之千里。
a mother”s love never changes.
母爱永恒。
an apple a day keeps the doctor away.
一天一苹果，不用请医生。
a new broom sweeps clean.
新官上任三把火。
an eye for an eye and a tooth for a tooth.
以眼还眼，以牙还牙。
an hour in the morning is worth two in the evening.
一日之计在于晨。
an old dog cannot learn new tricks.
老狗学不出新把戏。
an ounce of luck is better than a pound of wisdom.
聪明才智，不如运气。
an ounce of prevention is worth a pound of cure.
预防为主，治疗为辅。