SUBJECT WISE THEORIES
Culture and arts
art theories
Religion and belief systems
religious theories
Philosophy and thinking
Philosophical theories
Psychological theories
Society and social sciences
People and self
Language and communication
linguistics theories
Geography and places
Nature and physicality
Physics theories
Chemistry theories
Mathematics and logic
Mathematics theories
number theory
Information theory
Decisions theory
Games theory
Logic theories
Technology and applied sciences
History and events
Health and fitness
medical theories
theory of life
Anatomical theories