 What may appear as a truly sceptical thesis is his assumption that all philosophical claims are always made within a particular set of beliefs, i.e., within a particular system which is based on arbitrarily accepted criteria, definitions and categories. His pragmatic, ‘commonsensical attitude’ is highlighted in a verse he quotes: ‘with respect to everyday practice of the world, the fool and the wise are similar’ (see above), because ultimately we all have to rely on our experience and defective and partial knowledge of reality.