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. (shrink)

“The will is nothing but practical reason.” In other words choice, without being any kind of judgement, resembles inference in being either valid or invalid. Moral lightness is validity of choice.