Universals and Abstract Entities

One of the ancient problems of metaphysics is about whether universals exist. Universal is what particular things have in common, namely characteristics or qualities. For instance, two pieces of chalk have in common a quality of color, namely “whiteness”. There are many philosophical positions regarding universals. The main contemporary ones are: Realism which postulates that […]

Russell’s account of knowledge

Bertrand Russell’s account of knowledge is one of the forms of Cartesian skepticism. Russell claims that we can never truly know the physical object itself without knowing all its relations and all its qualities. Knowing something would mean knowing all the facts of which a thing is a constituent. From which we would deduce that […]