The term ‘philosophy’ may be used in more than one sense to refer to both the subjective human activity of ‘doing philosophy’ and its result, namely the production of systems of thought – philosophical theories – which history demonstrates as many and various. It will be argued that there is only one way of doing philosophy and that this is proceeding from the common principles of the human mind in the search for truth of what is real. The mark of true philosophy is unity. A unity of true philosophy may be sought from what seems disparate: Aquinas embodies this effort towards synthesis, convinced that reality is unified and ordered. ‘Just doing philosophy’ is what Thomism embodies
