  According to Weyl (1948, 295), both the theory of general relativity  and quantum mechanics force upon us the realization that  “instead of a real spatio-temporal material being what remains  for us is only a construction in pure symbols”. If it is  necessary, Weyl (1948, 302) says, that our scientific grasp of an  objective world must not depend on sense qualities, because of their  inherent subjective nature, then it is for the same reason necessary  to eliminate space and time. And Descartes gave us the means to do  this with his discovery of analytic geometry. 