And that which is done in the same manner, is done by the same; and that
which is done in an opposite manner by the opposite?

He agreed.

Once more, I said, is there anything beautiful?

Yes.

To which the only opposite is the ugly?

There is no other.

And is there anything good?

There is.

To which the only opposite is the evil?

There is no other.

And there is the acute in sound?

True.

To which the only opposite is the grave?

There is no other, he said, but that.

Then every opposite has one opposite only and no more?