It is not necessary here to raise the question whether there is, strictly speaking, any quality in things answering to the sentiment of beauty in our minds: this is a philosophical and not a psychological question, and turns on the further question, what we mean by object.

All that we need to assume here is that there are certain aspects of external things, certain relations of form, together with a power of exciting certain pleasurable ideas in the spectator's mind, which are commonly recognized as the cause of the emotion of beauty, and indeed regarded as constituting the embodiments of the objective quality, beauty.

AEsthetic intuition thus clearly implies the immediate assurance of the existence of a common source of aesthetic delight, a source bound up with an object of common sense-perception.

And so we may say that to call a thing beautiful is more or less distinctly to recognize it as a cause of a present emotion, and to attribute to it a power of raising a kindred emotion in other minds.
_AEsthetic Illusion._ According to this view of the matter, an illusion of aesthetic intuition would arise whenever this power of affecting a number of minds pleasurably is wrongly attributed, by an act of "intuition," to an object of sense-perception, on the ground of a present personal feeling.
Now, this error is by no means unfrequent.

Our delight in viewing external things, though agreeing up to a certain point, does not agree throughout.