the laws of gravitation and of motion as discovered by Isaac Newton (1642 - 1727), English mathematician and natural philosopher: (1) A body remains at rest or in motion with a constantvelocity unless an external forceacts on the body; (2) The sum of the forces acting on a body is equal to the product of the mass of the body and the acceleration produced by the forces, with motion in the direction of the resultant of the forces; (3) For every force acting on a body, the body exerts a force having equal magnitude and the opposite direction along the sameline of action as the original force. —Scientology 8-80 Glossary Final approval 13.2.90