The document discusses various theories of justice including utilitarianism, Rawls's social contract theory, communitarianism, and entitlement theory from Nozick. Rawls emphasizes justice as fairness through principles that guarantee equality and benefit the least advantaged, while Nozick advocates for a minimalist state based on individual property rights and non-patterned distributions. Additionally, it introduces Amartya Sen's and Martha Nussbaum's capabilities approaches, focusing on essential human capabilities and the importance of political and economic institutions in facilitating opportunities for individuals.