Much cannot be said in praise of the style or conception of the Eryxias. It is frequently obscure; like the exercise of a student, it is full of small imitations of Plato:—Phaeax returning from an expedition to Sicily (compare Socrates in the Charmides from the army at Potidaea), the figure of the game at draughts, borrowed from the Republic, etc. It has also in many passages the ring of sophistry. On the other hand, the rather unhandsome treatment which is exhibited towards Prodicus is quite unlike the urbanity of Plato. Yet there are some points in the argument which are deserving of attention. (1) That wealth depends upon the need of it or demand for it, is the first anticipation in an abstract form of one of the great principles of modern political economy, and the nearest approach to it to be found in an ancient writer. (2) The resolution of wealth into its simplest implements going on to infinity is a subtle and refined thought. (3) That wealth is relative to circumstances is a sound conception. (4) That the arts and sciences which receive payment are likewise to be comprehended under the notion of wealth, also touches a question of modern political economy. (5) The distinction of post hoc and propter hoc, often lost sight of in modern as well as in ancient times. These metaphysical conceptions and distinctions show considerable power of thought in the writer, whatever we may think of his merits as an imitator of Plato.