Was Mark Twain a racist?

Mark Twain once wrote, “One of my theories is that the hearts of men are about alike, all over the world, whatever their skin-complexion may be.” Throughout many of his novels, essays, stories, and personal letters, Twain expressed his anti-racist feelings. He even personally financed the first black person’s admission into Harvard.

But, Twain’s use of the “n” word many times in his books, has caused many people to call Twain a racist.

What do you think?