An 800-word essay entitled "Looking up at the sky and keeping your feet on the ground".

Someone in "Looking at the Stars Down to Earth" said that people should know how to look up at the stars, otherwise they are short-sighted; Some people say that people must be down-to-earth, or they will accomplish nothing. In my opinion, we should neither forget to look up at the starry sky nor keep our feet on the ground, otherwise we will either lack our dreams or the power to put them into practice. Premier Wen once said: Only when more people look up at the starry sky will a nation have a future ... Indeed, we need to look up at the starry sky like Thoreau and turn the pursuit of worldly fame and fortune into an illusion of the starry sky. While others are used to measuring the value of life by numbers in order to haggle over every ounce, Thoreau found the direction in the vast nature and the purest dream in the vast starry sky. Imagine, if we don't know the true meaning of looking up at the starry sky, how can we transcend the fetters of the secular world and find the truest and most beautiful ideal? Shortly after Mr. Qian Zhongshu's death, someone wrote an article to commemorate his "quiet" and "diligent study" life. Indeed, Mr. Qian Zhongshu is a down-to-earth model. He devoted his life to academic research, never striving for fame and gain, never wasting his time on making friends, reading ancient books, studying and writing monographs, and devoted his life to putting his demanding knowledge into practice, working hard and creating something. Imagine, if there is no down-to-earth pursuit, how can Mr. Qian Zhongshu become a master of playing Chinese and Western cultures? We can admire Thoreau's freedom to look up at the stars, and we can also admire Qian Zhongshu's down-to-earth efforts and truth-seeking. However, please don't forget that no great man can achieve such admirable achievements just by looking up at the stars or keeping his feet on the ground. If Thoreau, after looking up at the starry sky, didn't open up a world far away from the city by himself, lacked the determination to stick to a pure and peaceful dream all his life, and couldn't turn his dream into reality in a down-to-earth way, how could there be such enduring spiritual enlightenment as Walden Lake, and how could it be an immortal legend of this spiritual world? If Mr. Qian Zhongshu doesn't know how to look up at the vast starry sky of human history and set up such lofty aspirations before he is down to earth, how can he achieve the excellent introduction of Guan Cone and write a wise and incomparable philosophy of life written on the edge of life? Therefore, looking up at the starry sky is the beginning of our dream, and down-to-earth is the way to realize our dream. We need a childlike innocence to find the light of our dreams, and we need maturity and perseverance to complete the journey of realizing our dreams. Look up at the starry sky, beyond the constraints of reality to find dreams. Down-to-earth, use your own hands to realize your dreams. Since the goal is far away, we only care about difficulties and hardships, and set out towards the brightest constellation in the sky, step by step, in order to capture our dreams.