Full Idea
We can abandon the thing-in-itself, and aim for 'a complete deduction of all experience from the possibility of self-consciousness'.
Gist of Idea
We can deduce experience from self-consciousness, without the thing-in-itself
Source
Johann Fichte (works [1798], I p.425), quoted by Peter B. Lewis - Schopenhauer 3
Book Reference
Lewis, Peter B.: 'Schopenhauer' [Reaktion Books 2012], p.64
A Reaction
German Idealism now looks to me like a weird abberation in the history of philosophy, though no doubt it has (like every philosophical theory) some supporters out there somewhere. Schopenhauer called this 'raving nonsense'.
Related Idea
Idea 21919 Object for a subject and representation are the same thing [Schopenhauer]