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.

Life is all About “Trade-offs”


Life is all about “trade-offs,” and almost everything in life is a trade-off. If one thing increases, another must decrease.

Modern, Historic, and General Social Class Systems

All nations have some sort of class system or class structure, generally based on wealth, birth, or status. We explain modern and historic social class systems and the general logic behind them to see to what extent they are natural and what extent they are convention.