沁园春·长沙是毛泽东于1925年所作的一首诗。这首诗表达了他对家乡长沙的思念之情，同时也表达了他对祖国未来的期望和对革命的信念。

下面是该诗的原文：

独立寒秋，湘江北去，橘子洲头。看万山红遍，层林尽染；漫江碧透，百舸争流。鹰击长空，鱼翔浅底，万类霜天竞自由。怅寥廓，问苍茫大地，谁主沉浮？

携来百侣曾游，忆往昔峥嵘岁月稠。恰同学少年，风华正茂；书生意气，挥斥方遒。指点江山，激扬文字，粪土当年万户侯。曾记否，到中流击水，浪遏飞舟？

In this poem, Mao expresses his strong feelings of nostalgia for his hometown of Changsha. He portrays the natural beauty of the area, with the red mountains, green river and boats competing for space on the water. He also describes the freedom and diversity of the natural world, with eagles soaring in the sky and fish swimming in the shallow waters.

Mao contrasts this with the uncertainty and upheaval of the political situation at the time, asking who will ultimately control the fate of the country. He recalls his youth, when he and his friends roamed the area, full of youthful vigor and idealism. He notes the power of words and ideas to shape the world, and the ability of ordinary people to rise up and challenge the ruling elite.

Overall, Mao's poem reflects his deep connection to his homeland and his belief in the power of the people to create a better future. It is a powerful and evocative piece of writing, capturing the beauty and complexity of life in Changsha and the wider world.