2、Variety is the spice of life.

变化是生活的调味品。

3、Bad times make a good man.

艰难困苦出能人。

4、There is no royal road to learning.

求知无坦途。

5、Doubt is the key to knowledge.

怀疑是知识的钥匙。

6、The greatest test of courage on earth is to bear defeat without losing heart.

世界上对勇气的最大考验是忍受失败而不丧失信心。

7、A man's best friends are his ten fingers.

人最好的朋友是自己的十个手指。

8、Only they who fulfill their duties in everyday matters will fulfill them on great occasions.

只有在日常生活中尽责的人才会在重大时刻尽责。

9、The shortest way to do many things is to only one thing at a time.