Look in the mirror. The face that pins you with its double gaze reveals a chastening secret. You are looking into a predator's eyes. Most predators have eyes set right on the front of their heads, so they can use binocular vision to sight and track their prey.
Bio: Samuel Langhorne Clemens, better known by his pen name Mark Twain, was an American author and humorist. He wrote The Adventures of Tom Sawyer and its sequel, Adventures of Huckleberry Finn, the latter often called "The Great American Novel".