“Bodies like the earth are not made to move on curved orbits by a force called gravity; instead, they follow the nearest thing to a straight path in a curved space, which is called a geodesic. A geodesic is the shortest (or longest) path between two nearby points.” MadeTwoBodyEarthMovingForceSpacePathGravityOrbitStraight Path Book:A Brief History of Time: From the Big Bang to Black Holes Source: A Brief History of Time: From the Big Bang to Black Holes
“Men of gravity are intellectual stammerers, whose thoughts move slowly.” MenMovingIntellectualGravity Author:William Hazlitt