1. The Greek Verb“To Be” and the Concept of Being;Kahn;Foundations of Language,1966
2. Urmson J. O. , ‘The Objects of the Five Senses’, Proc. Brit. Acad. 54 (1968), for salutary remarks on this and related issues.
3. Stampe Dennis W. , ‘Towards a Grammar of Meaning’, Phil.Rev. 77 (1968), 156 ff.
4. Kenny A.J.P. , ‘Mental Health in Plato's Republic’, Proc. Brit.Acad. 55 (1969), 248–9, suggests that the perceiving part is a subdivision within reason itself, apparently overlooking its later alignment with the irrational part which tragedy encourages against reason and which Kenny himself is sensibly disinclined to identify with any of the parts met with elsewhere.