SENSATIONS AND "THINGS" 15.

SENSE AND IMAGINATION .-- Every one distinguishes between things perceived and things only imagined.

With open eyes I see the desk before me; with eyes closed, I can imagine it.

I lay my hand on it and feel it; I can, without laying my hand on it, imagine that I feel it.
I raise my eyes, and see the pictures on the wall opposite me; I can sit here and call before my mind the image of the door by which the house is entered.
What is the difference between sense and imagination?
It must be a difference of which we are all somehow conscious, for we unhesitatingly distinguish between the things we perceive and the things we merely imagine.
It is well to remember at the outset that the two classes of experiences are not wholly different.

The blue color that I imagine seems blue.