7. Elon Musk when he was 17 attended Queen's University in Canada, transferred to the University of Pennsylvania two years later, where he received dual bachelor's degrees in economics and physics. He moved to California in 1995 to begin a Ph.D. in applied physics and material sciences at Stanford University... (src: Wikipedia)
8. The richest and smartest man on earth. His official endorsement of Bitcoin is no joke as he has studied both economics and physics. These core subjects deal with Adam Smith's The Wealth of Nations and Newton's first law of motion.
9. Thus nations began stamping metal, on one side only, to ascertain purity, or on all sides, to stipulate purity and amount. The quantity of real metal in coins has diminished, due to the "avarice and injustice of princes and sovereign states," enabling them to pay their debts in appearance only, and to the defraudment of creditors. (src: The Wealth of Nations, Wikipedia)
10. Sir Isaac Newton first presented his three laws of motion in the "Principia Mathematica Philosophiae Naturalis" in 1686. His first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. (src: Nasa)