One of the rarest powers possessed by man is the power to state a fact. It seems a very simple thing to tell the truth, but, beyond all question, there is nothing half so easy as lying. To comprehend a fact in its exact length, breadth, relations, and significance, and to state it in language that shall represent it with exact fidelity, are the work of a mind singularly gifted, finely balanced, and thoroughly practiced in that special department of effort.