Arithmetic is numbers you squeeze from your head to your hand to your pencil to your paper till you get the answer.
Carl SandburgWhat of the Wright boys in Dayton? Just around the corner they had a shop and did a bicycle business-and they wanted to fly for the sake of flying. They were Man the Seeker, Man on a Quest. Money was their last thought, their final absent-minded idea. They threw out a lot of old mistaken measurements and figured new ones that stood up when they took off and held the air and steered a course. They proved that "the faster you go the less power you need."
Carl Sandburg