280 likes | 303 Views
Analogical Arguments. 1. Analogy can be used as a kind of description. E.g.: A good cook is hard to find. It is like trying to find a needle in a stack of hay. But it can also be used as an argument:
E N D
Analogy can be used as a kind of description. • E.g.: A good cook is hard to find. It is like trying to find a needle in a stack of hay. • But it can also be used as an argument: • E.g.: Logic is like algebra, both of them are the computation of symbols. Since you are good at algebra, you should be good at logic too.
Argument Form • Analogates A and B share properties x, y, and z. • A has property p. • Therefore, B also has property p. 3
The strength of an argument from analogy depends on several factors: • How property p is related to properties x, y, and z? • How many relevant similarities do the two analogates (A and B) share? • Are there any disanalogies between the two analogates which are related to p? 4
Sometimes, disanalogies between the analogates may strengthen rather than weaken the argument. • E.g.: If a dying animal is suffering immense pain, we will apply euthanasia to it for humanitarian reason. Therefore, if a dying patient has incurable pain and request for euthanasia, we should also grant his request.
There are 2 relevant disanalogies: • The patient will have greater psychological suffering than an animal. • The patient voluntarily choose euthanasia. • If euthanasia is justified for an animal because of its suffering, it will be more justified for the patient who has greater suffering and choose it voluntarily. • The disanalogies strengthen the argument.
Under what situations do we use analogical arguments? • We don’t know how to argue in a direct way. • E.g., Support abortion in the case of involuntary pregnancy but oppose abortion in the case of voluntary pregnancy. • The direct argument may be too difficult for our audience to understand. • The context demands a short and simple argument.
Argument (Con) • Both the Occupy Movement and Terrorism share the following characteristics: • Using illegal means in order to achieve a political ideal. • Causing harm to certain people. • Since terrorism is never morally justified, so was the Occupy Movement.
Argument (Pro) • A work strike is morally justified if it has the following conditions: • The workers have been exploited. • It is planned to be peaceful. • It is the last resort. • The harm to the public is small and short-term.
The Occupy Movement had the following characteristics: • HK people have been deprived of democracy. • It was planned to be peaceful. • It was the last resort. • The harm to the public was small and short-term . • Therefore, the Occupy Movement was morally justified.
Argument (Pro) • Non-genuine universal suffrage is a non-ideal gift. • We gain something by accepting a gift, whether it is ideal or not. • We should accept non-genuine universal suffrage as long as it is available.
Argument (Con) • Non-genuine universal suffrage is like fake medicine. • Both are harmful. • No one will take fake medicine even if she is sick. • We should not accept non-genuine universal suffrage.
Do we have an obligation to save the starving children in the third world?
Every year, tens of thousands of African children die due to malnutrition. • Suppose you encounter a UNICEF volunteer who asks you to donate $1000, which can prevent a child in Africa from dying due to malnutrition. • Do you have an obligation to donate the sum?
Argument (Pro) • Suppose you see a drowning child in a shallow pond. • You are the only one at the scene. • You have an obligation to save the child. • You also have an obligation to save an African child.
Objection 1 • To save the drowning child, one only needs to get wet. • No financial sacrifice is needed.
Response • Suppose you are wearing a pair of jeans worth $1000 when you see the drowning child. • The pond is full of dirt that will ruin your jeans. • Can you ethically let the child die in order to save your jeans?
Objection 2 • In the drowning case, I am the ONLY one who can help. • In the malnutrition case, there are many people who can donate $1000.
Response • Go back to the drowning case. • Suppose that there is another person noticing the child. • But you know that he will not help the child because he is actually amused in seeing the child struggle. • Would you be less wrong?
We know that most others won’t donate or won’t donate enough. • We can be sure that our donation would save a life that would not otherwise be saved. • This is enough to show that we have a moral obligation.
Objection 3 • In the drowning case, there is a child who needs help. • In the malnutrition case, although I can save one African child, there are still many African children will die.
Response • Suppose you see 10 drowning kids in the pond. • You cannot save all of them. • Can this be a reason to let all of them die?
Objection 4 • African children are far away from me, but the drowning child is just in front of me.
Response • Suppose you travel in Africa and encounter a volunteer of UNICEF who asks you to give donations. • Are you more obliged to donate in this situation? • If no, the distance between us and others makes no difference to our obligation to others.
Objection 5 • We have less obligation regarding people of different nationalities.
Response • Suppose the drowning child is an African, you still have the same obligation to save her.