Of course.
Then now mark the point at which I am aiming:—not only do essential opposites exclude one another, but also concrete things, which, although not in themselves opposed, contain opposites; these, I say, likewise reject the idea which is opposed to that which is contained in them, and when it approaches them they either perish or withdraw. For example; Will not the number three endure annihilation or anything sooner than be converted into an even number, while remaining three?
Very true, said Cebes.
And yet, he said, the number two is certainly not opposed to the number three?
It is not.
Then not only do opposite ideas repel the advance of one another, but also there are other natures which repel the approach of opposites.
Very true, he said.
Suppose, he said, that we endeavour, if possible, to determine what these are.
By all means.
Are they not, Cebes, such as compel the things of which they have possession, not only to take their own form, but also the form of some opposite?
What do you mean?
I mean, as I was just now saying, and as I am sure that you know, that those things which are possessed by the number three must not only be three in number, but must also be odd.
Quite true.
And on this oddness, of which the number three has the impress, the opposite idea will never intrude?
No.
And this impress was given by the odd principle?
Yes.
And to the odd is opposed the even?
True.
Then the idea of the even number will never arrive at three?
No.
Then three has no part in the even?
None.
Then the triad or number three is uneven?
Very true.