Ayn Rand supported collectivism.
Aristotle . The fact that Aristotle was a pupil of Plato contributed to his former views of Platonism , but , following Plato 's death , Aristotle immersed himself in empirical studies and shifted from Platonism to empiricism . Ayn Rand . She was sharply critical of most philosophers and philosophical traditions known to her , except for Aristotle , Thomas Aquinas , and classical liberals . Classical liberalism is a political ideology and a branch of liberalism which advocates civil liberties under the rule of law , and emphasizes economic freedoms found in economic liberalism which is also called free market capitalism . It drew on the economics of Adam Smith and on a belief in natural law , utilitarianism , and progress .