急求：结合语境,wonderful line 、speak prose的中文翻译

急求：结合语境,wonderful line 、speak prose的中文翻译
我想要确切的意思,越详细越好.出自米尔顿弗里德曼的一句话“ When I hear businessmen speak eloquently about the social responsibilities of business in a free-enterprise system, I am reminded of the wonderful line about the Frenchman who discovered at the age of 70 that he had been speaking prose all his life”.

这里他是在讽刺这些商人.
line 你可以理解为“话,故事”.
“当商人们关于.大发议论时,我不禁想起那句描述那个法国人的绝妙的话,他在70岁时发现自己一生都在发表着无聊的议论”