What is utilitarianism?
The morally right action is the action that causes the most overall good effects.
Consequentialism
The moral rightness of an action depends only on its effects
Consciousness
Things are morally right/wrong solely because of their effects on conscious beings who care about how they feel / what happens. Without such beings, nothing would be right/wrong.
impartiality
All conscious beings are to be included when we are considering the effects of an action and none have any more/less importance than any other.
maximisation
The morally right action is the action that maximises overall/total utility
What is the meaning of utility in hedonistic utilitarianism?
pleasure
What is the meaning of utility in non-hedonistic utilitarianism?
satisfaction of preferences
Jeremy Bentham’s quantitative hedonistic utilitarianism
The morally right action is the action that maximises the balance of pleasure over pain
quantitative
only to be measured based on its quantity
psychological hedonism
only pleasure and pain motivate us
ethical hedonism
only pleasure has moral value and only pain or displeasure has moral disvalue
Bentham’s utility calculus
Intensity
Duration
Certainty
Propinquity (how close the pleasure is)
Fecundity (how likely it is that it will lead to more of the same sensation)
Purity
Extent
John Stuart Mill’s qualitative hedonistic utilitarianism
he morally right action is the action that maximises the balance of pleasure over pain, taking the quality of the pleasures into consideration
Mill’s main quote
“It is better to be a human being dissatisfied than a pig satisfied; better to be Socrates dissatisfied than a fool satisfied”
John Stuart Mill’s ‘proof’ of the greatest happiness principle
P1: The only and best possible evidence for something being desirable is that it is desired.
P2: Each person’s happiness is desired by them
C1: Therefore, we have the best evidence we could have that each person’s happiness is desirable to them.
C2: Therefore, happiness is desirable
P3: Only happiness is desirable for its own sake.
P4: Whatever is desirable for its own sake is morally valuable and so ought to be maximised.
C3: Therefore, the right action is that action which tends to maximise happiness.
Preference utilitarianism
The morally right action is the action that maximises the satisfaction of preferences.
Act utilitarianism
The morally right action is the one that produces the most utility.
Actions are judged on a case by case basis.
This means that it is possible for the same type of action to be wrong on one occasion and right on another.
Decision making process = one stage
Which action produces the most utility? That’s the right action.
Rule utilitarianism
The morally right action is the one that is in accordance with the set of rules which, if accepted, produces the most utility.
Actions are judged based on their conformity to predetermined rules.
This means that if there is a rule about a particular type of action then presumably this action will always be wrong/right
Decision making process = two stages:
Which rule/s produces the most utility?
Which action fits the rule? That’s the right action