When someone like Roger Penrose talks about quantum theory, for example, or the mathematical properties of the universe, I may not be able to fathom everything he is saying, and that he himself is capable of comprehending, but I can recognize that he understands what he is saying, and that he is trying to communicate it to anyone who is willing to listen. And in so doing, in paying attention to such a person, I would seem to myself to undergo an expansion of spirit and of mind, as if out of the very substance of myself, more can be discovered; as if one’s very willingness to understand creates a capacity to understand, or at least a sympathy that can be put to use in the direction of one’s own abilities.