Honesty is the best policy.（诚实才是上策。）（Honest is always better in business than dishonesty because it causes people to trust you and want to deal with you.)

Necessity is the mother of invention.(需要是发明之母。）（When there is a need or emergency, people can then solve the difficulty.)

Never do things by halves. (凡事不可半途而废。）（If a job is worth doing at all, do it well.)

No news is good news. (没有消息就是好消息。) (The absence of news is a sign that all is well.)

Prevention is better than cure. (防胜于治。）（To prevent things from happening is much better than remedy or treatment after.)

Rome was not built in a day.(罗马非日建成。）(Great achievements cannot be accomplished within a short period of time.)

2）直译加意译

Still water runs deep.(静水流深;大智若愚。）（A quiet manner may conceal a great depth of feeling or of knowledge.)

Time and tide wait for no man.(岁月不待人；时不我待。）（If an opportunity is neglected it may not come again for a long time.)