Aesthetics

Epistemology

Applied ethics – philosophical examination, from a moral standpoint, of particular issues in private and public life that are matters of moral judgment. It is thus the attempts to use philosophical methods to identify the morally correct course of action in various fields of human life.
- Bioethics – analysis of controversial ethical issues emerging from advances in medicine.
- Environmental ethics – studies ethical issues concerning the non-human world. It exerts influence on a large range of disciplines including environmental law, environmental sociology, ecotheology, ecological economics, ecology and environmental geography.
- Medical ethics – studies ethical issues concerning medicine and medical research.
- Professional ethics – ethics to improve professionalism.
Discourse ethics – discovery of ethical principles through the study of language.
Normative ethics – study of ethical theories that prescribe how people ought to act.
Metaethics – branch of ethics that seeks to understand the nature of ethical properties, statements, attitudes, and judgments.

Cosmology – the study of the nature and origins of the universe.
Ontology – philosophical study of the nature of being, becoming, existence, or reality, as well as the basic categories of being and their relations.
- Meta-ontology – study of the ontological foundations of ontology itself.
Philosophy of space and time – branch of philosophy concerned with the issues surrounding the ontology, epistemology, and character of space and time.