| Subject | English | Turkish |
| math. | principle of equal ignorance | eşit bilgisizlik kuralı |
| stat. | principle of equipartition | eşit parçalara ayırma kuralı |
| math. | principle of parsimony | tutumluluk ilkesi (prensibi) |
| philos. | principle of sufficient reason | Yeter Neden İlkesi (Natalya Rovina) |
| environ. | principle of sustainability Principle stated by the World Commission on Environment and Development (The Bruntland Commission) in 1987: development that meets the needs of the present without compromising the needs of future generations. Sustainable development is a process of integrating economic, social and ecological goals, and should not mean a trade-off between the environment and development. Sustainable development should imply balance rather than conflict | sürdürülebilirlik prensibi |
| environ. | trinity of principles trias of environmental policy principles: precautionary, originator (polluter-pays) and cooperation principle; Three fundamental principles of environmental policy: precautionary principle, polluter pays-principle and cooperation principle | çevre politikasının üç temel ilkesi |