1917年,一位青年从天津南开学校毕业,赴日本留学前,留下一首七绝:大江歌罢掉头东,邃密群科济世穷。面壁十年图破壁,难酬蹈海亦英雄。这位青年叫周恩来。这首诗抒写了他寻求科学真理以挽救祖国危亡,愿如神龙破壁腾飞的豪迈志向。可是,为什么最后却表示,如果壮志难酬宁可蹈海,还说即使蹈海也堪称英雄呢? In 1917, a young man graduated from Nankai, Tianjin, before leaving for Japan to study, leaving a Qijue: The Grand River Song to remove the head east, a profound group of people living in poverty. Ten years to break the wall wall surface, difficult to pay the sea is also a hero. The young man called Zhou Enlai. This poem expresses his heroic aspirations of seeking the truth of science so as to save the motherland from danger. However, why did they finally say that even if the sea is a hero, if the hard-won reward is better than the sea?