The problem is that you can't defend first principles without presupposing them — that is what makes them "first" principles.
Unbounded doubt interpretations, in particular, can avoid the charge, because they have the mediator discovering the circumstances under which some perceptions resist doubt, rather than presupposing them.
It is chimerical, Rorty holds, to think that the force or attractiveness of these norms can be enhanced by argument that does not presuppose them.
Many of them presuppose a working knowledge of genealogy.
Moreover, it is clear that David could not have written all the psalms attributed to him because some of them presuppose the existence of the Temple in Jerusalem, which was not constructed until later.
But contemporary human rights are specific and many of them presuppose contemporary institutions (e.g., the right to a fair trial and the right to education).
And one might think that for these three to be distinct, there must be two more objects separating them, and so on (this view presupposes that their being made of different substances is not sufficient to render them distinct).
The effective implementation of the principal components analysis on the selected categories of transport (containers, autos, conventional, bulk, passengers) of the port of Piraeus, presupposes the existence of statistically significant correlation between them.
In other words, Zen does not understand time and space by imposing a formal category on them, by presupposing in advance a form-matter distinction, which indicates an operation of the discursive mode of reasoning by appealing to the either-or, dualistic, and ego-logical epistemological structure.
