The quote comes from Francis Bacon: We must not narrow the universe in order to adapt it to the limits of our imagination, as man has so far used to do. Rather, we have to expand our knowledge so that it can grasp the picture of the universe. Everything material is finite in time in its different existence. This is true without exception! Only the spiritual exists forever. The physical basis for this is the law of conservation of energy, which unequivocally expresses that energy, in whatever form, can neither be generated nor destroyed. Energetic procedural thought processes are a procedural component of energy and energy exists forever!