Thinking is a mental process which allows humans to model the world, philosophy is the attempt to understand the world using logic and reason. The world being both the external and the internal, and both the knowable and unknowable.

For an overview of philosophy see our branches of philosophy page, for an introduction to philosophy check out Reason at Work (Amazon). Philosophy includes everything from economic and political philosophies, to the philosophies of emotions and mind, to cosmological and other other metaphysical questions, to the nature of god and religion, to the very nature of what we can know. Given that every subject has a science and philosophy (with the two often merging, such is the case in theoretical physics or mathematics) we have to be careful not to undervalue the practical aspects of this non-science.

Essentialism vs. Existentialism

Essentialism is the idea that everything has an essence (something that “makes it, it”). Existentialism says there is no essence (no intrinsic meaning that can be confirmed by the senses or reason).

Hume’s Fork Explained

“Hume’s fork” describes how we refer to Kant’s critique of Hume, who separated knowledge into two types: facts based on ideas and facts based on experience.

Game Theory is the Study of Games


Game theory involves games, but it isn’t the study of games. It is the study of mathematical models of conflict and cooperation regarding decision making.