Show how candy's comments to crooks and Lennie relate the dream of the land to Steinbeck theme of economic exploitation?

In Steinbeck's "Of Mice and Men," Lennie, Candy and Crooks are men, who due to their education, class and poverty are doomed to toil in economic servitude for life. The dream of the land allows Candy to escape the economic exploitation of the ranch, and dream for a moment that the possibility of escape exists. He is so protective of that dream that he is even momentarily able to transfer some of his belief and enthusiasm to the disbelieving Crooks.