Introduction to Philosophy

In our introductory lecture, Dr. Bonevac explores the foundations of ethics through virtue theory, drawing on Confucius, Socrates, Plato, and Aristotle to examine what it means to live a good life and cultivate good character. We address three central questions—what kind of person to be, what to do, and how to decide—while discussing virtue as a mean between extremes, the unity of virtues, weakness of will, and the role of habit in developing virtue. The lecture concludes by considering how virtues may instead be complex combinations of simpler traits rather than strict means between extremes.

In lecture two, we turn to deontological ethics, which emphasizes moral principles and rules for action rather than character traits. We consider a range of approaches—from Abelard’s focus on intentions and Aquinas’s natural law grounded in human flourishing, to ethical intuitionism with its plural moral principles, and Haidt’s five-dimensional moral foundations theory. The lecture builds to Kant’s landmark categorical imperative, challenging us to act only on maxims we could will as universal laws and to treat humanity always as an end, never merely as a means.

In lecture three, we explore consequentialist ethics, focusing on utilitarianism as developed by Jeremy Bentham and John Stuart Mill. We examine how actions are judged by their outcomes rather than intentions or character, considering key concepts like the principle of utility, the felicific calculus, interpersonal comparisons, and Mill’s distinction between higher and lower pleasures. Dr. Bonevac also addresses practical challenges and objections—such as conflicts with rights and calculation difficulties—while highlighting utilitarianism’s systematic, consequence-based approach to resolving moral dilemmas.