Jack London(1876-1916)is known as an American novelist in the early 20th century.He lived in the gilded times that were full of different kinds of trend of thought in literature and art.His experiences made his life more colorful.He saw the cruelty of Capitalism and spoke for Socialism with his words.His novels,The Call of the Wild,The leading character,in their own way,witnessed the survival of the fittest in their life.Jack London told the unchanged truth—the survival of the fittest in his brilliant words.It is difficult to change the world,but easy to change oneself.One adjusts to his life space with his“evolution”,and one goes in a new environment where every cloud has a silver lining. Jack London (1876-1916) is known as an American novelist in the early 20th century. He lived in the gilded times that were full of different kinds of trend of thought in literature and art. His experiences made his life more colorful. He saw the cruelty of Capitalism and spoke for Socialism with his words. His novels, The Call of the Wild, The leading character, in their own way, witnessed the survival of the fittest in their life. Jack London told the unchanged truth-the survival of the fittest in his brilliant words. It is difficult to change the world, but easy to change oneself. One adjusts to his life space with his “evolution”, and one goes in a new environment where every cloud has a silver lining.