blood will have blood.
血债血偿。 

books and friends should be few but good.
读书如交友，应求少而精。 

business is business.
公事公办。 

business is the salt of life.
事业是人生的第一需要。 

by reading we enrich the mind, by conversation we polish it.
读书使人充实，交谈使人精明。 

cannot see the wood for the trees.
一叶障目，不见泰山。 

care and diligence bring luck.
谨慎和勤奋才能抓住机遇。 

caution is the parent of safety.
小心驶得万年船。 

cheats never prosper.
骗人发不了财。 

children are what the mothers are.
耳濡目染，身教言传。 

choose an author as you choose a friend.
择书如择友。 

come what may, heaven won‘t fall.
做你的吧，天塌不下来。 

complacency is the enemy of study.
学习的敌人是自己的满足。