"You told us a moment ago that a universal could not exist wholly and exclusively in two individuals at once. Does not the universal by definition—THE equilateral triangle measuring one metre on each face—does it not exist wholly, in its integrity of essence, in each of the two triangles we have conceived?"
"It does—as a conception."
"I thank you! Now, although I fear wearying you, perhaps you will consent to let me add matter to mind. I have here on my desk an object not uncommon in nature, which I will ask you to describe."
"It appears to be a crystal."
"May I ask its shape?"
"I should call it a regular octahedron."
"That is, two pyramids, set base to base? making eight plane surfaces, each a perfect equilateral triangle?"
"Concedo triangula (I grant the triangles)."
"Do you know, perchance, what is this material which seems to give substantial existence to these eight triangles?"
"I do not."