Core framework
Utilitarianism
Maximize aggregate well-being.
Guiding principle
An act is right insofar as it produces the greatest balance of well-being over suffering across all affected parties.
Key thinkers
Jeremy Bentham · John Stuart Mill · Peter Singer
Strengths
- Impartial: everyone's welfare counts equally.
- Action-guiding in policy and triage where trade-offs are unavoidable.
- Empirically tractable — consequences can, in principle, be measured.
Common objections
- Permits horrific acts if the sums come out right (organ harvesting objection).
- Ignores the separateness of persons — treats individuals as vessels of utility.
- Predicting consequences reliably is often impossible.
Mini-example
A hospital has one ventilator and two patients. Utilitarianism recommends whichever allocation produces the most expected life-years of decent quality.