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.

Men Can’t Be Feminists


Can Men Be Feminist?

It’s a myth that men can’t be feminists. Anyone including men can be a feminist, because feminism is simply a belief in the equality of sexes.

Thoughts Can Create Reality


Can thoughts create reality?

Our thoughts can shape our inner reality and outward perceptions of things (neuroplasticity), but to affect or create a reality outside ourselves, we must interact with the world and communicate our thoughts.

If You Build it, They Will Come


If You Build it, Will They Come?

If you build it, you increase the odds of them coming. In other words, if you put thought and energy into a project you increase the likelihood of success.

Observing a Phenomenon Affects Its Outcome


Observation affects outcome

Observing a phenomenon can affect its outcome (observer effect). In science, this refers to particles existing in a state of probability until measured.

A Theory Isn’t True Unless Proven True


A theory can be true or not true, all we know about a scientific theory is that it has predictive power and hasn’t been proven wrong by experiment yet.