You really, really should. It's a kind, heartfelt essay about why he is still the greatest there ever was:

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I would submit that any sane American with a measurable amount of humor and audacity admires Mark Twain. It is difficult to imagine the sane American who wouldn't. Though he struggled throughout his life with the better and worse angels of his nature—which is, in part, why we love him—Twain wound up as one of us, on the right side of the American character: the Huck Finn side, not the Tom Sawyer side. (More on that divide in a bit.) Most importantly, he lit the lamp and cut the trail so we could find that side. We wouldn't be here without him. He combines rugged individualism with moral courage with merry gloom like nobody else.

Go read the whole thing.