The document discusses several major ethical perspectives:
1) Utilitarianism focuses on consequences and doing the greatest good for the greatest number of people. It involves weighing costs and benefits of actions.
2) Kant's deontological perspective argues people should do their duty and act based on universal moral rules, not consequences.
3) Rawls' justice as fairness perspective includes principles of equal rights and helping the least advantaged. It uses a "veil of ignorance" thought experiment.
4) Pragmatism views ethics as a process of inquiry where alternatives are explored through imagination before making value-based decisions.