To be prepared for war is one of the most effective means of preserving peace.
自己不能胜任的事，切勿轻易答应别人;既经允诺，就必须实践自己的诺言。
You will never reach your destination if you stop and throw stones at every dog that barks.
"The best way to forget something is to remember it."
听听他们的言论，看看他们的实际行为，考察他们的能力，谨慎的授予官职。
The future belongs to those who are willing to take calculated risks.