But what if [the superficial appearance such as] the visible whiteness in ceruse is constitutive? In the swan the whiteness is not constitutive since a swan need not be white: it is constitutive in ceruse, just as warmth is constitutive of the Reality, fire.
No doubt we may be told that the Reality in fire is [not warmth but] fieriness and in ceruse an analogous abstraction: yet the fact remains that in visible fire warmth or fieriness is constitutive and in the ceruse whiteness.
Thus the same entities are represented at once as being not qualities but constituents of Reality and not constituents but qualities.
Now it is absurd to talk as if one identical thing changed its own nature according to whether it is present as a constituent or as an accidental.
The truth is that while the Reason-Principles producing these entities contain nothing but what is of the nature of Reality, yet only in the Intellectual Realm do the produced things possess real existence: here they are not real; they are qualified.