It from bit symbolizes the idea that every item of the physical world has at bottom at a very deep bottom, in most instances an immaterial source and explanation; that which we call reality arises in the last analysis from the posing of yes-no questions and the resistering of equipment-evoked responses; in short, that all things physical are information-theoretic in origin and that this is a participatory universe .
From the paper "Information, Physics, Quantum: The Search for Links" which appeared in Complexity, Entropy and the Physics of Information edited by Wojciech H. Zurek (1990), p. 5.
There are many modes of thinking about the world around us and our place in it. I like to consider all the angles from which we might gain perspective on our amazing universe and the nature of existence.John Archibald Wheeler
We live on an island surrounded by a sea of ignorance . As our island of knowledge grows, so does the shore of our ignorance.John Archibald Wheeler
Spacetime tells matter how to move; matter tells spacetime how to curve.John Archibald Wheeler
Of all heroes , Spinoza was Einstein 's greatest. No one expressed more strongly then he a belief in the harmony , the beauty , and most of all the ultimate comprehensibility of nature .John Archibald Wheeler