Imagination (n.) has a philosophical use: invent fictitious concepts, and they will teach us at last to understand our own.
Imagination (n.) King's College on fire and insisting 'it's King's and no other' is like writing 'Portrait of Mr. So-and-so' under a picture — the saying makes the connection.
Imagination (n.) can teach us nothing about a material's properties; the experimental character vanishes when a process is seen as a memorable picture.
Imagination (n.) can be the medium of calculation, but never of experiment.
Imagination (n.) is voluntary, memory involuntary — but calling something to mind is voluntary.
Imagination (n.) is comparable to an activity, like swimming: images do not happen to us and do not surprise us.
Imagination (n.) someone is aimed by intention, not likeness: I imagine whoever I mean to imagine.
Imagination (n.) speaks in phrases like shut my eyes and there he is, which may be not learned but poetically formed, and seem just right to one person, then the next.
Imagination (n.) is needed to hear something as a variation on a theme, and yet one perceives something in so hearing it.
Imagination (n.) can stand in for a picture or a demonstration: imagine this changed like this, and you have that.
Imagination (n.) is needed to see a boulder suddenly as a man, a face here, feet there, unlike recognising a lifelike picture of a dog.
Imagination (n.) can contribute to knowledge, as we calculate in the imagination.
Imagination (n.) is needed to see a triangle as half a parallelogram, but not to see the black or white cross in a double cross.
Imagination (n.) needs no existence: I can imagine a stag that is not in this meadow, though I cannot kill one that is not there.
Imagination (n.) proves nothing about sense: I can think the rose red in the dark, but that does not make it sense to say so.
Imagination (n.) and seeing are closely tied but not similar; the games of look there and shut your eyes are radically different.
Imagination (n.) is more like doing than receiving; it may be called a creative act.