 Finally, it would seem that the model of demonstration that Maritain employs is foundationalist and, thus, has to answer to those criticisms that modern anti-foundationalism draws attention to—e.g., that a foundationalist theory sets a standard for knowledge that is not only without justification, but is a standard that it cannot itself satisfy. Some defences of Thomistic epistemology (e.g., Veatch 1990), however, suggest ways in which such a concern might be addressed.