point of view, and see whether you agree with me:—There is a thing which you term heat, and another thing which you term cold?
Certainly.
But are they the same as fire and snow?
Most assuredly not.
Heat is a thing different from fire, and cold is not the same with snow?
Yes.
And yet you will surely admit, that when snow, as was before said, is under the influence of heat, they will not remain snow and heat; but at the advance of the heat, the snow will either retire or perish?
Very true, he replied.
And the fire too at the advance of the cold will either retire or perish; and when the fire is under the influence of the cold, they will not remain as before, fire and cold.
That is true, he said.
And in some cases the name of the idea is not only attached