“Philosophy is the study of general and fundamental problems concerning matters such as existence, knowledge, values, reason, mind, and language.” – Wikipedia
- Metaphysics: The fundamental nature of being and the world.
- Ontology: Study of the basic categories of being of entities and their relations.
- Epistemology: Study of knowledge.
- Logic: Study of reasoning and argument.
- Mathematical logic
- Philosophy of mind and philosophy of language
- Psychology and cognitive science
- Philosophy of mathematics and philosophy of science
- Foundations of mathematics
- Foundations of statistics
- Philosophy of religion
- Natural theology
- Axiology (Value theory): Study of human values with regard to the society.
- Political philosophy
- Sociology: Study of social behaviors or societies.
- Critical theory
The tradition of philosophy is diverse on both emphasis and methodology.
- Continental philosophy
- Analytic philosophy
In simple but somewhat imprecise words: Analytic philosophy emphasizes the use of formal logic and serves as the basis for the philosophy of science; Continental philosophy is everything else (and as the name suggests, it takes root mostly in mainland Europe).