The author allows Sam's character to suffer the most diverse types of prejudice, even though he is an admirable person, to convey the main idea of the text.
In "Master Harold" we can see the central idea that racism is promoted without any justifiable reason. This is highlighted by the character called Sam.
Sam is a black, kind, cultured, and well-educated man who suffers from the most varied types of racism and prejudice, for no reason other than the color of his skin.
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