axiology
Axiological ethics – Ethical theory about values
Fact–value distinction – Philosophical distinction between 'is' and 'should'
Praxeology – Theory of human action
Nikolay Lossky – Russian philosopher (1870–1965)
Money – Object or record accepted as payment
Nihilism – Philosophy antithetical to concepts of meaningfulness
Utility – Concept in economics and game theory
Value (economics) – The measure of benefit provided by a good or service in an economy
Value (ethics) – Personal value, basis for ethical action