If there is a small rocket on top of a big one, and if the big one is jettisoned and the small one is ignited, then their speeds are added. — Hermann Oberth Copy Share Image
Genius as an explosive power beats gunpowder hollow; and if knowledge, which should give that power guidance, is wanting, the chances are not small that the rocket will simply run amuck among friends and foes. — Thomas Huxley Copy Share Image
