The document discusses several ethical theories and philosophers, including:
- Aristotle's view of virtue as a mean between extremes and the role of developing good habits and character.
- Kant's deontological view that ethics are absolute and based on universal rules like not lying or stealing, as determined through reason alone.
- Utilitarianism as proposed by Bentham and Mill, where the morality of an action is determined by its consequences and producing the greatest happiness for the greatest number.