Men live tightly enclosed in the straitjacket of the human senses, so that they never know what is beyond these very limited and very restricted channels of perception. Yet their experience of the world is actually created out of this mysterious element which transcends their ordinary view. All that they get is their own idea of what is real, and never any contact with the real world itself. The lesson of atomic research is that such a world is completely different from the one that seems to surround them.
-- Notebooks Category 21: Mentalism > Chapter 1: The Sensed World > # 31