Immanuel Kant (1724–1804) is one of the most important figures in modern philosophy. The first philosopher to advance a deontological approach, he has influenced contemporary philosophy significantly in areas such as aesthetics, political philosophy, and ethics. Good Will Kant argued that when we focus on outcomes rather than our duty, we prefer something of merely conditional value—beneficial outcomes—over the only thing that has unconditional value—good will, a concept that for Kant meant the decision to carry out our moral duties. Kant establishes the unconditional value of good will. A good will is good not because of what it effects, or accomplishes, not because of its fitness to attain some intended end, but good just by its willing, i.e. in itself; and, considered by itself, is to be esteemed beyond compare much higher than anything that could ever be brought about by it in favor of some inclination. (Kant 1997a, 4:394) When we perform an action because it is our duty (or from duty), without influence from outside, merely conditional factors, we act in a way that contributes to the goodness of our will. Human Reason and Morality Kant’s normative moral theory rests on how he defines what it means to be human. Kant argued that what separated us from other animals is our ability to think rationally. Animals are driven by impulses and so are irrational. As humans, however, we can reason, make decision independent of our desires, and so exercise agency. We can rise above animal instincts. In this sense, humans have freedom and free will. Kant used the term “good will” to refer to our will to rise above our passions and biases and act rationally. Furthermore, through our capacity to act rationally and so exercise “good will,” we establish our value above all other (living) things. At the same time, we have a duty to act rationally—which, in Kant’s view, is to act morally. We should always act rationally because it is only through rational, moral action that we realize our freedom and affirm our worth and dignity. Figure 9.5 “Two things fill the mind with ever new and increasing admiration and reverence, the more often and more steadily one reflects on them: the starry heavens above me and the moral law within me” (Kant 1997a, 5:161). (credit: “The Milky Way” by Erick Kurniawan/Flickr, CC BY 2.0) Moral Laws Kant believed that moral laws, or maxims, could be discovered a priori. No matter what religion we follow or culture we grew up in, we can use our reason to figure out what is right and what is wrong. We use our reason alone to arrive at the moral rules by which we should abide. In Groundwork of the Metaphysics of Morals ([1785] 1997, 4:415–416), Kant set out to explore these moral laws by first examining common-sense morality—that is, ideas that most people share about morality, such as do not steal or do not murder. The will, Kant noted, always presents its rules in the form of commands, which he called imperatives. He divided these imperatives into two categories: hypothetical and categorical. Hypothetical Imperatives A hypothetical imperative “says only that the action is good for some actual or possible purpose” (Kant 1997a, 4:414–415). In other words, we may follow rules, such as “study hard,” “get a job,” and “save money.” But each of these commands determine only what should be done in order to achieve some (proposed) end. We say “study hard to get good grades,” “get a job to earn money,” and “save money to buy a house for your family.” Through the hypothetical imperative we establish subjective rules for acting. We use these rules regularly to navigate the world, solve problems, and pursue various ends. A hypothetical imperative is thus not a moral rule, but a means to achieve a goal—to fulfill a desire. Categorical Imperative Unlike hypothetical imperatives, categorical imperatives are universal laws that we must obey regardless of our desires. Kant writes, “For only the law carries with it the concept of an unconditional and indeed objective and hence universally valid necessity, and commands are laws that must be obeyed, i.e. must be complied with even contrary to inclination” (Kant 1997a, 4:416). Categorical imperatives are derived by reason and we have a moral duty to follow them. Kant suggested that we derive categorical imperatives through four formulations that serve as a standard or guide to test whether our reasons for acting conform to the standard of rationality and thus moral law. The two most widely examined formulations are the universal law formulation and the humanity formulation. The Universal Law Formulation The universal law formulation of the categorical imperative states: “Act only according to that maxim through which you can at the same time will that it become a universal law” (Kant 1997a, 4:421). Kant thought the maxim (or rule for acting) should be able to be made universal in the sense that it is a rule that could bind all rational beings (e.g., always tell the truth). When we lie, for example, we want to act as an exception to the rule for reasons other than fulfilling our moral obligation. In such cases, we wish that everyone else abide by the rule, so that when we lie, we are believed and can operate as an exception to the norm in order to fulfill a desire. Yet, if everyone lied—that is if we universalized lying—then we would no longer achieve our desired end. Everyone would lie, and so you would not necessarily be believed. Say, for example, members of a specific group, such as university students, get discounted rates at a bookstore. If you, as a nonstudent, tell the bookseller that you are a student even though you are not, you can get the discounted rate. But once you universalize your action—and all nonstudents begin to lie—the bookseller will catch on and likely begin to ask for identification. Therefore, the rule you are following, “I can lie to get a discount,” cannot be made universal and is immoral. Moral law must be applicable to all rational beings. The Humanity Formulation The humanity formulation focuses on how we ought to treat rational beings, whether oneself or others. Kant thought that every person possesses the same inherent value and worth because we are all rational beings. Kant writes, “So act that you use humanity, in your own person as well as in the person of any other, always at the same time as an end, never merely as a means” (Kant 1997a, 4:429). The humanity formulation therefore asks us to consider whether our actions treat others and ourselves as ends, as entities valuable in themselves, or whether we seek to reduce rational beings to the status of a mere means, as valuable only in that they help us achieve our goal. When we lie to someone, we fail to treat them as a person. We have obstructed their ability to act as a human, as a rational being that has the ability to rise up above impulses and make decisions based on reason. By telling a lie, we have failed to provide the basic information another human needs to make a rational decision. To do so, is always wrong, for it overlooks the inherent value we all possess as rational beings who possess a will and who are capable of acting as free, rational agents. Note that Kant is not saying that we cannot rely on other humans to help us achieve a goal. Kant uses the term “never merely as a means” and so indicates that so long as we treat others as humans, and do not impair their ability to act as rational agents, we can derive benefit from others. Humans must cooperate, but in doing so, should treat each other as ends-in-themselves, as rational beings. Notice that we can arrive at the same imperative from either the universal law formulation or the humanity formulation. If you lie to the bookseller about being a student, you are treating the bookseller as a means to an end. Indeed, scholars often view Kant’s four formulations as different means to achieving the same ends—that is, different ways of arriving at the same or a similar list of categorical imperatives.

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