Mark Twain said that a lie can travel halfway around the world before the truth can even get its boots on. This quotation means that lies can spread very quickly, while the truth takes more time to be widely known. The document discusses how Mark Twain, whose real name was Samuel Langhorne Clemens, was an American author and humorist in the 19th century who wrote many famous works. It also provides context for the quotation by explaining that lying is easy because it is difficult to verify the truth, so lies can spread more readily than the truth.