In this paper

the authors analyze and discuss the theme of “Leaves of Grass” in four aspects.In “Leaves of Grass”

Walt Whitman highly praises democracy and freedom

and advocates the human equality.He warmly extols the nature and eulogizes the labouring people who create the world.While exposing and criticising all the crimes that were against the democratic ideal

he shows much sympathy for the blacks who had been living in the bottom of the American society.In one word

its controlling idea is to eulogize democracy and freedom.