The Einstein Theory of Relativity: A Concise Statement

“The future is not a gift-it is an achievement.””

— H. A. Lorentz

“Till now it was believed that time and space existed by themselves, even if there was nothing else--no sun, no earth, no stars--while now we know that time and space are not the vessel for the universe, but could not exist at all if there were no contents, namely, no sun, earth and other celestial bodies.””

— H. A. Lorentz

“Einstein has put an end to this isolation; it is now well established that gravitation affects not only matter, but also light.””

— H. A. Lorentz

“Einstein's work is to make physics more philosophical (in a good sense),””

— H. A. Lorentz

“It is comprehensible that a person could not have arrived at such a far-reaching change of view by continuing to follow the old beaten paths, but only by introducing some sort of new idea. Indeed, Einstein arrived at his theory through a train of thought of great originality.””

— H. A. Lorentz

“difform motion will in every case produce the same effects as gravitation.””

— H. A. Lorentz

“The Newtonian theory can no longer be regarded as absolutely correct in all cases;””

— H. A. Lorentz

“Einstein supposes that space is Euclidean where it is sufficiently remote from matter, but that the presence of matter causes it to become slightly non-Euclidean”

— H. A. Lorentz

“Briefly, it discards absolute time and space and makes them in every instance relative to moving systems.””

— H. A. Lorentz