Quotes About Matter-energy

difference in kind between empirical questions characteristic of science and philosophical questions about the fact of existence itself (a distinction lost on those who think that the universe as a whole, or matter-energy, or anything else that exists, might adequately explain its own being).135

We recall that the warping of the bedsheet was determined by the presence of the rock. Einstein summarized this analogy by stating: The presence of matter-energy determines the curvature of the space-time surrounding it.