Common people cannot understand the lofty aspirations or grand ambitions of great individuals; small minds cannot comprehend great ambitions.
小李从小就有远大的理想，想成为一名科学家，而他的同伴们只顾玩乐，真是燕雀岂知雕鹗志啊！
Li has harbored grand ideals since childhood, aspiring to be a scientist, while his peers were merely preoccupied with leisure. Indeed, how can sparrows understand the ambition of an eagle!
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