25 Why do we disagree on what is right even when we agree on the facts?

We live in a world where we are constantly making decisions about what is right and wrong, yet we rarely stop to examine the rules of logic that govern our moral reasoning. When we face a deep conflict, we often find that our moral intuitions clash, leaving us unsure of how to justify our actions to others.

In this episode, we lay the groundwork for moral philosophy by exploring the critical tools needed to analyze our own beliefs. We discuss how philosophy is not just an abstract academic pursuit for the elite, but a practical way to liberate ourselves from unconscious prejudices. We trace how our everyday opinions and judgments can be structured into formal propositions with real truth values, allowing us to evaluate arguments instead of just reacting to them.

• Understanding the four causes of Aristotle—material, formal, efficient, and final—provides a comprehensive method for defining complex concepts like philosophy itself.
• A logical dilemma is structured so that choosing between two opposing premises leads inevitably to one of two distinct outcomes.
• Philosophical disputes are rarely solved by simply pointing to facts, because facts always require an interpretation shaped by our underlying worldviews.
• The distinction between natural and conventional facts explains why some truths exist independently of us, while others depend entirely on human societal rules.
• The correspondence theory of truth defines a claim as true only when it aligns directly with actual states of affairs in reality.

As a brief behind-the-scenes insight from this lecture, the host shares how taking a rigorous logic course in graduate school completely transformed his own academic abilities, allowing him to recognize that many arguments he once thought were strong were actually deeply flawed.

If you were to write down the moral principles you live by, could you defend them without falling into a logical contradiction?