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. His novels include The Adventures of Tom Sawyer (1876) and its sequel, the Adventures of Huckleberry Finn (1885), the latter often called "The Great American Novel".
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What mattered was not what happens to you, but how you handle it. Self-command is required to overcome the dangerous misinformation of our emotions, and because for the most part the self is the only thing that we can command. We have no control, ultimately, over what people do or think. What we can influence is our understanding of these circumstances and how we respond to them.