字幕表 動画を再生する
“Fiat justitia, pereat mundus”. Let justice be done, though the world perish. This quotation,
taken from Kant’s 1795 Perpetual Peace, neatly sums up his philosophical position,
namely that people have moral duties which they must necessarily follow. Such duty is
revealed to us through reason, and is an unconditional obligation, which must be realised regardless
of an individual’s own will or desire. This position, reflecting Kant’s deontological
philosophy (which focuses on the morality of actions rather than their consequences),
contrasts with the prevailing utilitarian philosophy of the late 18th century (which
focuses on the morality and desirability of ends rather than means). It is categorical
in the sense that it applies universally and without conditions; it is an imperative in
that it is a command which has to be followed without question.
The Categorical Imperative Kant himself defined the categorical imperative
as a process by which you should "Act only according to that maxim whereby you can at
the same time will that it should become a universal law." For example, you personally
must follow the categorical imperative “thou shalt not kill” if you believe that everybody
should follow this imperative. Since it is a duty, it is necessary to follow the categorical
imperative even when there seems to be no harm in not doing so. For example, if you
find yourself in a car, at a red stop light early in the morning when there are no other
cars on the road. Should you drive through, knowing that there is no chance you will cause
an accident to anyone? If you decide to do so (if you will this action), you are accepting
the universality of this action – namely that anyone can go through any red light at
any time they choose, regardless of the specific situation. It is this universality which differentiates
the categorical imperative from the Golden Rule, with which it is often confused. Whereas
the Golden Rule focuses on the self, the individual (i.e. you should treat others as you would
want yourself to be treated), the Categorical Imperative is universal.
Categorical Imperative vs Hypothetical Imperative Since the categorical imperative follows the
moral law, conditionality can never be attached to the categorical imperative. This said,
Kant was a realist: he does not think people should do what is impossible for them. Moral
statements are prescriptive, meaning that “I ought to do something” is the same
as “I can do something.” The categorical imperative thus contrasts with a hypothetical
imperative, which applies only conditionally. Whereas the categorical imperative would say
“Do X”, a hypothetical imperative would say “Do X in order to achieve Y.” If we
actually analyse the constituent parts of a hypothetical imperative, we need to ascertain,
firstly, whether “Y” is in fact a moral objective, secondly whether doing “X”
is moral as well and thirdly whether doing “X” will actually lead to “Y” in any
case.
Criticisms of the Categorical Imperative One of the strongest challenges to the categorical
imperative came from the French philosopher Bejamin Constant, who argued that since telling
the truth must be universal then it follows that one must, if asked, tell a known murderer
the whereabouts of his intended victim. Kant agreed with Constant’s position, but denied
that it weakened his premise, since moral actions do not derive their value from the
expected consequences.
Conclusion Kant argues that humans occupy a special place
in creation because of their reason. As such, this is a serious responsibility which should
not be taken lightly. Although the categorical imperative is often in battle with our natural
wants and desires, immortality stems from a violation of the categorical imperative,
and therefore it must be followed at all times. Morality comes from doing what is right, whatever
the consequences may be.