 There are “oughts” other than our moral duties, according to Kant, but these oughts are distinguished from the moral ought in being based on a quite different kind of principle, one that is the source of hypothetical imperatives. A hypothetical imperative is a command that also applies to us in virtue of our having a rational will, but not simply in virtue of this. It requires us to exercise our wills in a certain way given we have antecedently willed an end. A hypothetical imperative is thus a command in a conditional form. But not any command in this form counts as a hypothetical imperative in Kant’s sense. For instance, “if you’re happy and you know it, clap your hands!” is a conditional command. But the antecedent conditions under which the command “clap your hands” applies to you do not posit any end that you will, but consist rather of emotional and cognitive states you may or may not be in. Further, “if you want pastrami, try the corner deli” is also a command in conditional form, but strictly speaking it too fails to be a hypothetical imperative in Kant’s sense since this command does not apply to us in virtue of our willing some end, but only in virtue of our desiring or wanting an end. For Kant, willing an end involves more than desiring; it requires actively choosing or committing to the end rather than merely finding oneself with a passive desire for it. Further, there is nothing irrational in failing to will means to what one desires. An imperative that applied to us in virtue of our desiring some end would thus not be a hypothetical imperative of practical rationality in Kant’s sense.