Philosophical theories are theories that are philosophical, rather than purely scientific by nature. Meanwhile, philosophical concepts can be loosely describes as ideas or “concepts” that are philosophical in nature.

Generally, a concept is a single idea, a theory is an explanation of how something works, and philosophy is simply the study of that which we can’t know for sure (see the branches of philosophy.).

So then, for our purposes, philosophical theories and concepts is simply a broad category that contains all non-scientific theories worth discussing.

TIP: For a great explainer on the basics of Philosophy see Tamar Gendler: An Introduction to the Philosophy of Politics and Economics by Big Think.

NOTE: Some scientific theories that spark metaphysical philosophical questions are categorized here (as well as under their respective scientific fields). Learn more about scientific theories.

Philosophy Requires Liberty


To advance culture philosophically (not just technologically or economically) liberty is required. The major philosophical works came from liberal nations.

Plato’s Five Regimes

Plato discusses five regimes (five forms of government) in his Republic, Book VIII. They are Aristocracy, Timocracy, Oligarchy, Democracy, and Tyranny.

What is a Polity?

Classically speaking, the term Polity means “a state” (a group of people under a single social contract), but it also implies an “ideal state” (a Kallipolis).

The Political Left and Right are Naturally Occurring


What we call the political left and right are an outgrowth of liberty and the human condition. Once people are free to express themselves, they will create a left and right (because left and right are a reflection of human nature). This is essentially true for any issue or debate, be it national politics, a local community issue or even a family or other small group issue.