make a wise man smile and a foolish man cry

make a wise man smile and a foolish man cryIf it is true that life makes a wise man smile and a foolish man cry,then my friend is truly a wise man.这句话怎么翻译?是一句谚语吗？不怎么明白哦 I was impressed and attracted by his lively wit.He believed that no class hour is a success unless the students and the professor share several chuckles and at least one loud laugh.Through his sense of humor,he made learning much more enjoyable and lasting.If it is true that life makes a wise man smile and a foolish man cry,then my friend is truly a wise man.Probably the best example of his wit is this idea with which he once ended a lecture :”It is as dangerous for man to model himself up on his invention,the machine,as it would be for God to model himself upon His invention.”