The desire for praise is the desire to obtain, as a sign that one is good, the favorable opinions of others. But because people merit praise only for those actions motivated by a desire to help others, it follows that one who aids others primarily out of a desire for praise does not deserve praise for that aid.

Summary
The author concludes that people who help others mainly out of a desire for praise do not deserve praise for that help. This is based on the following:
The desire for praise is the desire to obtain the favorable opinions of others.
If someone deserves praise for an action (”merit” = “deserve”), that action must be motivated by a desire to help others.

Missing Connection
We’re trying to prove that people who help others mainly out of a desire for praise don’t deserve praise for that help. We know from the second premise that in order to deserve praise, the action must be motivated by a desire to help others. So if we can show that people who help others mainly out of a desire for praise are NOT motivated by a desire to help others, that would prove our conclusion.

A
An action that is motivated by a desire for the favorable opinion of others cannot also be motivated by a desire to help others.
The first premise establishes that the desire for praise is the desire to obtain the favorable opinions of others. (A) would establish that helping others mainly out of the desire for praise constitutes an action that is NOT motivated by a desire to help others. This then would connect with the second premise, which takes us to “not deserve praise.”
B
No action is worthy of praise if it is motivated solely by a desire for praise.
The conclusion concerns people who help others “primarily” out of a desire for praise. (B), which tells us that actions motivated “solely” by praise don’t deserve praise, doesn’t cover actions that are done “primarily” out of desire for praise.
C
People who are indifferent to the welfare of others do not deserve praise.
We don’t know that people who help others primarily out of a desire for praise are indifferent to the welfare of others. Maybe they do care about others...it’s just that their action is mainly about getting praise.
D
One deserves praise for advancing one’s own interests only if one also advances the interests of others.
It’s not clear that one who helps others out of a desire for praise is actually advancing their own interests. It’s also not clear that helping others out of a desire for praise wouldn’t advance the interests of others. So (D) doesn’t connect to any of the premises of this argument.
E
It is the motives rather than the consequences of one’s actions that determine whether one deserves praise for them.
(E) establishes that motives determine whether one deserve praise. But (E) allows for actions out of selfish motives, such as desire for praise, to still deserve praise. (E) doesn’t tell us what kind of motive would make an action undeserving of praise.

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Rosen: One cannot prepare a good meal from bad food, produce good food from bad soil, maintain good soil without good farming, or have good farming without a culture that places value on the proper maintenance of all its natural resources so that needed supplies are always available.

Summary

Good meal → NOT bad food

Good food → NOT bad soil

Good soil → Good farming

Good farming → culture that places value on maintaining natural resources

Very Strongly Supported Conclusions

Normally, I wouldn’t think “NOT bad food” implies “good food,” since there might be something that’s just not bad and not good — just middle-of-the-road food. Same thing with “NOT bad soil” and “good soil.”

But, the stimulus seems to be set up in order for us to draw a conditional chain connecting every statement.

Good meal → good food → good soil → good farming → culture that places value on maintining natural resources.

I know this seems inappropriate, but consider this problem unusual, and don’t draw too many lessons from it. Think of this problem as an exception.

A
The creation of good meals depends on both natural and cultural conditions.

Supported, if we accept the conditional chain starting with “good meal” and ending with “culture that maintains natural resources.” A good meal depends on natural conditions, such as soil. And it depends on cultural conditions, such as a culture’s view of natural resources.

B
Natural resources cannot be maintained properly without good farming practices.

We know good farming is necessary for good soil. But there’s no support for the claim that good farming is necessary for maintaining natural resources. There are many other kinds of natural resources besides soil, and we don’t know whether good farming is related to those other resources.

C
Good soil is a prerequisite of good farming.

We know good farming is necessary for good soil. But this doesn’t mean good soil is necessary (prerequisite) for good farming.

D
Any society with good cultural values will have a good cuisine.

We don’t know anything about good “cuisine.” A cuisine is different from a meal. We also don’t know that “good cultural values” is sufficient for anything.

E
When food is bad, it is because of poor soil and, ultimately, bad farming practices.

Food might be bad for other reasons besides poor soil and bad farming. We know that good food requires good soil and good farming, but it might also require other things. So we might have good soil and good farming, but still end up with bad food.


99 comments

Some types of organisms originated through endosymbiosis, the engulfing of one organism by another so that a part of the former becomes a functioning part of the latter. An unusual nucleomorph, a structure that contains DNA and resembles a cell nucleus, has been discovered within a plant known as a chlorarachniophyte. Two versions of a particular gene have been found in the DNA of this nucleomorph, and one would expect to find only a single version of this gene if the nucleomorph were not the remains of an engulfed organism’s nucleus.

Summary
Organisms can be created through endosymbiosis, which is when organism A absorbs organism B, so organism B becomes part of organism A. We’ve also learned that a particular plant, “C,” contains a strange nucleomorph. Nucleomorphs are similar to cell nuclei, and contain DNA. The nucleomorph in plant C is strange because its DNA has two copies of a certain gene, which we would only expect if the nucleomorph had originally been an absorbed organism’s nucleus.

Strongly Supported Conclusions
The facts above strongly support the conclusion that the nucleomorph in plant C was originally an organism that was absorbed, meaning that plant C is a product of endosymbiosis.

A
Only organisms of types that originated through endosymbiosis contain nucleomorphs.
This is not supported. The stimulus doesn’t reveal much about where nucleomorphs come from. We can infer that the nucleomorph in plant C comes from endosymbiosis based on the facts given, but that doesn’t tell us about the origins of other nucleomorphs.
B
A nucleomorph within the chlorarachniophyte holds all of the genetic material of some other organism.
This is not supported. We know that the nucleomorph in plant C contains some DNA, but we definitely don’t have enough information to say that the DNA is a full copy of another organism’s genetic material.
C
Nucleomorphs originated when an organism endosymbiotically engulfed a chlorarachniophyte.
This is anti-supported. From the facts, we know that plant C itself contains at least one nucleomorph, so it wouldn’t make sense for nucleomorphs to originate from plant C getting absorbed. For that to work, plant C would have to absorb itself, which is far-fetched.
D
Two organisms will not undergo endosymbiosis unless at least one of them contains a nucleomorph.
This is not supported. The stimulus doesn’t suggest much about the relationship between endosymbiosis and nucleomorphs. We definitely can’t say that an organism already containing a nucleomorph is necessary for endosymbiosis to occur.
E
Chlorarachniophytes emerged as the result of two organisms having undergone endosymbiosis.
This is strongly supported. The stimulus strongly implies that the nucleomorph within plant C used to be another organism that was absorbed, and we know that endosymbiosis is the name for that process. Thus, plant C probably comes from endosymbiosis.

144 comments