A merry heart goes all the way.
心旷神怡，事事顺利。
A sound mind in a sound body.
健全的精神寓于健康的身体。
Care and diligence bring luck.
谨慎和勤奋才能抓住机遇。
Confidence in yourself is the first step on the road to success.
自信是走向成功的第一步。
Do nothing by halves.
凡事不可半途而废。
Don't claim to know what you don't know.
不要不懂装懂。
