Full Idea
Conceptual (and logical) necessities can be taken to be the propositions which are true in virtue of the nature of all concepts (or just the logical concepts).
Gist of Idea
Conceptual necessities rest on the nature of all concepts
Source
Kit Fine (Essence and Modality [1994], p. 9-10)
Book Reference
-: 'Philosophical Perspectives' [-], p.9
A Reaction
The idea that something might be true simply because of the nature of a concept sounds good, and a slightly better formulation than traditional accounts of analytic truth.