Today many people are incapable of living intensely in the present, of feeling what they experience. The old monks developed a method of living completely in the present...a method of meditation they called ruminatio...to chew over. So they took words from scripture into their mouth and kept chewing them over. They repeated them in their hearts, considered and reconsidered them, looked at the word from all sides. The word became flesh in them. It changed them. It gave them something to hold onto in their spiritual unrest and the noisy world. It enabled them to live completely for the moment.
Without faith that it is possible to render reality understandable by means of our theoretical constructs, without faith in an inner harmony of the world, there could be no science. This faith is and always will be the basic motivation behind every creative scientific idea. All our endeavors, all the dramatic conflicts between old and new ideas are supported by the eternal desire for knowledge, the unshakeable faith in cosmic harmony which becomes stronger the more difficulties loom before us.
~ from THE EVOLUTION OF PHYSICS by Albert Einstein and Leopold Infield