We ourselves introduce that order and regularity in the appearance which we entitle "nature". We could never find them in appearances had we not ourselves, by the nature of our own mind, originally set them there.
All perception is colored by emotion.
Psychologists have hitherto failed to realize that imagination is a necessary ingredient of perception itself.
Things which we see are not by themselves what we see ... It remains completely unknown to us what the objects may be by themselves and apart from the receptivity of our senses. We know nothing but our manner of perceiving them.
All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.