by the difference between nominative and accusative.) Othello’s judgement that Cassio loves Desdemona differs from his judgement that Desdemona loves Cassio, in spite of the fact that it consists of the same constituents, because the relation of judging places the constituents in a different order in the two cases. Similarly, if Cassio judges that Desdemona loves Othello, the constituents of the judgement are still the same, but their order is different. This property of having a “sense” or “direction” is one which the relation of judging shares with all other relations. The “sense” of relations is the ultimate source of order and series and a host of mathematical concepts; but we need not concern ourselves further with this aspect.