"...Einstein's space is no closer to reality than Van Gogh's sky. The glory of science is not in
a truth more absolute than the truth of Bach or Tolstoy, but in the act of creation itself. The
scientist's discoveries impose his own order on chaos, as the composer
or painter imposes his; an
order that always refers to limited aspects of reality, and is based on the observer's frame of
reference, which differs from period to period as a Rembrandt nude differs from a nude by
Manet."