Full Idea
A thought can be split up in many ways, so that now one thing, now another, appears as subject or predicate
Gist of Idea
A thought can be split in many ways, so that different parts appear as subject or predicate
Source
Gottlob Frege (On Concept and Object [1892], p.199)
Book Reference
Frege,Gottlob: 'Translations from the Writings of Gottlob Frege', ed/tr. Geach,P/Black,M [Blackwell 1980], p.49
A Reaction
Thus 'the mouse is in the box', and 'the box contains the mouse'. A simple point, but important when we are trying to distinguish thought from language.