Full Idea
The failure to distinguish between the identity or essence of an object and its necessary features is an instance of what we may call 'modal mania'.
Gist of Idea
We must distinguish between the identity or essence of an object, and its necessary features
Source
Kit Fine (Intro to 'Modality and Tense' [2005], p. 9)
Book Reference
Fine,Kit: 'Modality and Tense' [OUP 2005], p.9
A Reaction
He blames Kripke's work for modal mania, a reaction to Quine's 'contempt' for modal notions. I don't actually understand Fine's remark (yet), but it strikes me as incredibly important! Explanations by email, please.