1、To be both a speaker of words and a doer of deeds.
既当演说家，又做实干家。
2、Bad times make a good man.
艰难困苦出能人。
3、Doubt is the key to knowledge.
怀疑是知识的钥匙。
4、The greatest test of courage on earth is to bear defeat without losing heart.
世界上对勇气的考验是忍受失败而不丧失信心。
5、A man's best friends are his ten fingers.
人的朋友是自己的十个手指。
