(3)An economist is an expert who will know tomorrow why the things he predicted yesterday didn't happen today.

 

经济学家是这样的专家：他明天才会明白为什么他昨天的预测今天没有发生。

 

(4)The worst bankrupt is the person who has lost his enthusiasm.

 

人生最惨重的破产就是丧失了自己的热情。