中世哲学
Major and his circle were interested in the structures of language – spoken, written and 'mental'. This latter was the language which underlies the thoughts that are expressed in natural languages, like Scots, English or Latin. He attacks a whole range of questions from a generally 'nominalist' perspective – a form of philosophical discourse whose tradition derives from the high Middle Ages and was to continue into that of the Scottish and other European empiricists. According to Alexander Broadie, Major's influence on this latter tradition reached as far as the 18th and 19th century Scottish School of Common Sense initiated by Thomas Reid. The highly logical and technical approach of Medieval philosophy – perhaps added to by Major's poor written style as well as his adherence to the Catholic party at the time of the Reformation – explain in some part why this influence is still somewhat occluded.