To the question ‘Why do you try to realize this?’ your answer may be ‘Because I desire that and I think that the realization of this would involve the realization of that.’ Or your answer may be ‘Because I desire this.’ If ‘Why?’ is interpreted as ‘Desiring what?’ the question ‘Why do you desire this?’ is improper. The word ‘desire’ is, however, frequently used in such a way as to countenance the impropriety. It is so used not only when what is pursued only as a means is said to be desired, but also when a desire for what possesses one character is said to be a desire for what possesses a a concomitant character. Strictly, perhaps, an object of desire is describable in terms only of the character immediately relevant to the desire. The expression ‘to desire what is X qua X’ is perhaps redundant; and the expression ‘to desire what is X qua Y’ is perhaps self-contradictory. But those who think, so must admit that such expressions are current among even careful speakers.