Sextus Empiricus Pyrrhoniae Hypotyposes 2.5.30

[30] Now that body is not apprehended is easily shown thus: the attributes of an object ¹ are different from the object whereof they are attributes. So when colour or any similar quality is perceived by us, what we perceive is probably the attributes of the body but not the body itself. Certainly the body, they say, exists in three dimensions; we ought therefore to apprehend its length and breadth and depth in order to apprehend the body. For if we perceived depth ² we should also discern silver pieces under their coating of gold. Therefore we do not apprehend the body either.