Samuel Langhorne Clemens (November 30, 1835 – April 21, 1910), known by his pen name Mark Twain, was an American writer, humorist, entrepreneur, publisher, and lecturer. He was lauded as the "greatest humorist [the United States] has produced", and William Faulkner called him "the father of American literature". His novels include The Adventures of Tom Sawyer (1876) and its sequel, the Adventures of Huckleberry Finn (1884), the latter often called "The Great American Novel".
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Sometimes it seems as though not a moment has moved, but then you look up and you're already old or you already have a household of kids or you look down and see your feet are miles and miles away from the rest of you—and you realize you've grown up.