Full Idea
German Idealism aims to demonstrate that our thinking relates to a nature which is intelligibly structured in the same way as our thinking is structured.
Gist of Idea
German Idealism says our thinking and nature have the same rational structure
Source
Andrew Bowie (Introduction to German Philosophy [2003], 3 'Limits')
Book Reference
Bowie,Andrew: 'Introduction to German Philosophy' [Polity 2003], p.58
A Reaction
Now that's an idealism I might buy into. Frege thought his logic was mapping rational reality. My angle is that we are a product of this 'reality', so we should expect our thinking to be similarly structured. Reason is derived from nature.
Related Idea
Idea 20951 The absolute I divides into consciousness, and a world which is not-I [Fichte, by Bowie]