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1、哈佛大学公开课程公正：该如何做是好？Justice: Whats the Right Thing to Do? This is a course about justice and we begin with a story.Suppose youre the driver of a trolley car, and your trolley car is hurtling down the track at 60 miles an hour.And at the end of the track you notice five workers working on the track.You
2、 try to stop but you cant, your brakes dont work.You feel desperate because you know that if you crash into these five workers, they will all die.Lets assume you know that for sure.And so you feel helpless until you notice that there is, off to the right, a side track and at the end of that track, t
3、here is one worker working on the track.Your steering wheel works, so you can turn the trolley car, if you want to, onto the side track killing the one but sparing the five.Heres our first question: whats the right thing to do?What would you do? Lets take a poll.How many would turn the trolley car o
4、nto the side track? Raise your hands.How many wouldnt? How many would go straight ahead?Keep your hands up those of you who would go straight ahead.A handful of people would, the vast majority would turn.Lets hear first, now we need to begin to investigate the reasons why you think its the right thi
5、ng to do.Lets begin with those in the majority who would turn to go onto the side track. Why would you do it?What would be your reason? Whos willing to volunteer a reason?Go ahead. Stand up.Because it cant be right to kill five people when you can only kill one person instead.It wouldnt be right to
6、kill five if you could kill one person instead.Thats a good reason.Thats a good reason. Who else?Does everybody agree with that reason? Go ahead.Well I was thinking its the same reason on 9/11 with regard to the people who flew the plane into the Pennsylvania field as heroes because they chose to ki
7、ll the people on the plane and not kill more people in big buildings.So the principle there was the same on 9/11.Its a tragic circumstance but better to kill one so that five can live, is that the reason most of you had, those of you who would turn? Yes?Lets hear now from those in the minority, thos
8、e who wouldnt turn. Yes.Well, I think thats the same type of mentality that justifies genocide and totalitarianism.In order to save one type of race, you wipe out the other.So what would you do in this case?You would, to avoid the horrors of genocide, you would crash into the five and kill them?Pres
9、umably, yes.You would? -Yeah.Okay. Who else? Thats a brave answer.Thank you.Lets consider another trolley car case and see whether those of you in the majority want to adhere to the principle better that one should die so that five should live.This time youre not the driver of the trolley car, youre
10、 an onlooker. Youre standing on a bridge overlooking a trolley car track.And down the track comes a trolley car, at the end of the track are five workers, the brakes dont work, the trolley car is about to careen into the five and kill them.And now, youre not the driver, you really feel helpless unti
11、l you notice standing next to you, leaning over the bridge is a very fat man.And you could give him a shove.He would fall over the bridge onto the track right in the way of the trolley car. He would die but he would spare the five.Now, how many would push the fat man over the bridge?Raise your hand.
12、 How many wouldnt? Most people wouldnt. Heres the obvious question.What became of the principle better to save five lives even if it means sacrificing one?What became of the principle that almost everyone endorsed in the first case?I need to hear from someone who was in the majority in both cases.Ho
13、w do you explain the difference between the two? Yes.The second one, I guess, involves an active choice of pushing a person down which I guess that person himself would otherwise not have been involved in the situation at all.And so to choose on his behalf, I guess, to involve him in something that
14、he otherwise would have escaped is, I guess, more than what you have in the first case where the three parties, the driver and the two sets of workers, are already, I guess, in the situation.But the guy working, the one on the track off to the side, he didnt choose to sacrifice his life any more tha
15、n the fat man did, did he?Thats true, but he was on the tracks and.This guy was on the bridge.Go ahead, you can come back if you want. All right.Its a hard question. You did well. You did very well.Its a hard question.Who else can find a way of reconciling the reaction of the majority in these two c
16、ases? Yes.Well, I guess in the first case where you have the one worker and the five, its a choice between those two and you have to make a certain choice and people are going to die because of the trolley car, not necessarily because of your direct actions.The trolley car is a runaway thing and you
17、re making a split second choice.Whereas pushing the fat man over is an actual act of murder on your part.You have control over that whereas you may not have control over the trolley car.So I think its a slightly different situation.All right, who has a reply?Thats good. Who has a way?Who wants to re
18、ply?Is that a way out of this?I dont think thats a very good reason because you choose toeither way you have to choose who dies because you either choose to turn and kill the person, which is an act of conscious thought to turn, or you choose to push the fat man over which is also an active, conscio
19、us action.So either way, youre making a choice.Do you want to reply?Im not really sure that thats the case.It just still seems kind of different.The act of actually pushing someone over onto the tracks and killing him, you are actually killing him yourself.Youre pushing him with your own hands.Youre
20、 pushing him and thats different than steering something that is going to cause death into another.You know, it doesnt really sound right saying it now.No, no. Its good. Its good.Whats your name?Andrew.Andrew.Let me ask you this question, Andrew.Yes.Suppose standing on the bridge next to the fat man
21、, I didnt have to push him, suppose he was standing over a trap door that I could open by turning a steering wheel like that.Would you turn?For some reason, that still just seems more wrong.Right?I mean, maybe if you accidentally like leaned into the steering wheel or something like that.But. Or say
22、 that the car is hurtling towards a switch that will drop the trap.Then I could agree with that.Thats all right. Fair enough.It still seems wrong in a way that it doesnt seem wrong in the first case to turn, you say.And in another way, I mean, in the first situation youre involved directly with the
23、situation.In the second one, youre an onlooker as well.All right. -So you have the choice of becoming involved or not by pushing the fat man.All right. Lets forget for the moment about this case.Thats good.Lets imagine a different case.This time youre a doctor in an emergency room and six patients c
24、ome to you.Theyve been in a terrible trolley car wreck.Five of them sustain moderate injuries, one is severely injured, you could spend all day caring for the one severely injured victim but in that time, the five would die.Or you could look after the five, restore them to health but during that tim
25、e, the one severely injured person would die.How many would save the five?Now as the doctor, how many would save the one?Very few people, just a handful of people.Same reason, I assume.One life versus five?Now consider another doctor case.This time, youre a transplant surgeon and you have five patie
26、nts, each in desperate need of an organ transplant in order to survive.One needs a heart, one a lung, one a kidney, one a liver, and the fifth a pancreas.And you have no organ donors.You are about to see them die.And then it occurs to you that in the next room theres a healthy guy who came in for a
27、check-up.And hes - you like that - and hes taking a nap, you could go in very quietly, yank out the five organs, that person would die, but you could save the five.How many would do it?Anyone? How many?Put your hands up if you would do it.Anyone in the balcony?I would.You would? Be careful, dont lea
28、n over too much.How many wouldnt?All right. What do you say?Speak up in the balcony, you who would yank out the organs. Why?Id actually like to explore a slightly alternate possibility of just taking the one of the five who needs an organ who dies first and using their four healthy organs to save th
29、e other four.Thats a pretty good idea.Thats a great idea except for the fact that you just wrecked the philosophical point.Lets step back from these stories and these arguments to notice a couple of things about the way the arguments have begun to unfold.Certain moral principles have already begun t
30、o emerge from the discussions weve had.And lets consider what those moral principles look like.The first moral principle that emerged in the discussion said the right thing to do, the moral thing to do depends on the consequences that will result from your action.At the end of the day, better that f
31、ive should live even if one must die.Thats an example of consequentialist moral reasoning.Consequentialist moral reasoning locates morality in the consequences of an act, in the state of the world that will result from the thing you do.But then we went a little further, we considered those other cas
32、es and people werent so sure about consequentialist moral reasoning.When people hesitated to push the fat man over the bridge or to yank out the organs of the innocent patient, people gestured toward reasons having to do with the intrinsic quality of the act itself, consequences be what they may.Peo
33、ple were reluctant.People thought it was just wrong, categorically wrong, to kill a person, an innocent person, even for the sake of saving five lives.At least people thought that in the second version of each story we considered.So this points to a second categorical way of thinking about moral rea
34、soning.Categorical moral reasoning locates morality in certain absolute moral requirements, certain categorical duties and rights, regardless of the consequences.Were going to explore in the days and weeks to come the contrast between consequentialist and categorical moral principles.The most influe
35、ntial example of consequential moral reasoning is utilitarianism, a doctrine invented by Jeremy Bentham, English political philosopher.The most important philosopher of categorical moral reasoning German philosopher Immanuel Kant.So we will look at those two different modes of moral reasoning, asses
36、s them, and also consider others.If you look at the syllabus, youll notice that we read a number of great and famous books, books by Aristotle, John Locke, Immanuel Kant, John Stewart Mill, and others.Youll notice too from the syllabus that we dont only read these books; we also take up contemporary
37、, political, and legal controversies that raise philosophical questions.We will debate equality and inequality, affirmative action, free speech versus hate speech, same sex marriage, military conscription, a range of practical questions. Why?Not just to enliven these abstract and distant books but t
38、o make clear, to bring out whats at stake in our everyday lives, including our political lives, for philosophy.And so we will read these books and we will debate these issues, and well see how each informs and illuminates the other.This may sound appealing enough, but here I have to issue a warning.
39、And the warning is this, to read these books in this way as an exercise in self knowledge, to read them in this way carries certain risks, risks that are both personal and political, risks that every student of political philosophy has known.These risks spring from the fact that philosophy teaches u
40、s and unsettles us by confronting us with what we already know.Theres an irony.The difficulty of this course consists in the fact that it teaches what you already know.It works by taking what we know from familiar unquestioned settings and making it strange.Thats how those examples worked, the hypot
41、heticals with which we began, with their mix of playfulness and sobriety.Its also how these philosophical books work. Philosophy estranges us from the familiar, not by supplying new information but by inviting and provoking a new way of seeing but, and heres the risk, once the familiar turns strange
42、, its never quite the same again.Self knowledge is like lost innocence, however unsettling you find it; it can never be un-thought or un-known.What makes this enterprise difficult but also riveting is that moral and political philosophy is a story and you dont know where the story will lead.But what
43、 you do know is that the story is about you.Those are the personal risks.Now what of the political risks?One way of introducing a course like this would be to promise you that by reading these books and debating these issues, you will become a better, more responsible citizen; you will examine the p
44、resuppositions of public policy, you will hone your political judgment, you will become a more effective participant in public affairs.But this would be a partial and misleading promise.Political philosophy, for the most part, hasnt worked that way.You have to allow for the possibility that politica
45、l philosophy may make you a worse citizen rather than a better one or at least a worse citizen before it makes you a better one, and thats because philosophy is a distancing, even debilitating, activity. And you see this, going back to Socrates, theres a dialogue, the Gorgias, in which one of Socrat
46、es friends, Callicles, tries to talk him out of philosophizing.Callicles tells Socrates Philosophy is a pretty toy if one indulges in it with moderation at the right time of life. But if one pursues it further than one should, it is absolute ruin.Take my advice, Callicles says, abandon argument. Lea
47、rn the accomplishments of active life, take for your models not those people who spend their time on these petty quibbles but those who have a good livelihood and reputation and many other blessings.So Callicles is really saying to Socrates Quit philosophizing, get real, go to business school. And C
48、allicles did have a point.He had a point because philosophy distances us from conventions, from established assumptions, and from settled beliefs.Those are the risks, personal and political.And in the face of these risks, there is a characteristic evasion.The name of the evasion is skepticism, its the idea - well, it goes something like this - we didnt resolve once and for all either the cases or the principles we were arguing
