Very true, he said.
Which might be like, or might be unlike them?
Yes.
But that makes no difference; whenever from seeing one thing you conceived another, whether like or unlike, there must surely have been an act of recollection?
Very true.
But what would you say of equal portions of wood and stone, or other material equals? and what is the impression produced by them? Are they equals in the same sense in which absolute equality is equal? or do they fall short of this perfect equality in a measure?
Yes, he said, in a very great measure too.
And must we not allow, that when I or any one, looking at any object, observes that the thing which he sees aims at being some other thing, but falls short of, and cannot be, that other thing, but is inferior, he who makes this observation must have had a previous knowledge of that to which the other, although similar, was inferior?
Certainly.
And has not this been our own case in the matter of equals and of absolute equality?