It was not the function of our examples to show us the essence of “deriving”, “reading”, and so forth through a veil of inessential features;
the examples
they
were not descriptions of an outside letting us guess at an inside which for some reason or other could not be shown in its nakedness. We are tempted to think that our examples are indirect means for producing a certain image or idea in a person's mind, – – that they hint at something which they cannot show.
This would be so in some such case as this: Suppose I wish to produce in someone a mental image of the inside of a particular 18th century room which he is prevented from entering. I therefore adopt this method: I show him the house from the outside, pointing out the windows of the room in question, I further lead him into other rooms of the same period. ‒ ‒