Full Idea
In Bradley's view, qualities and relations belong to the realm of appearance. We are left with a single, undifferentiated substance: the Absolute.
Gist of Idea
Qualities and relations are mere appearance; the Absolute is a single undifferentiated substance
Source
report of F.H. Bradley (Appearance and Reality [1893]) by John Heil - Relations 'Internal'
Book Reference
'Routledge Companion to Metaphysics', ed/tr. Le Poidevin/Simons etc [Routledge 2012], p.314
A Reaction
I've not read Bradley, but I can't distinguish this proposal from Parmenides's belief in The One. Or maybe Spinoza's monist view of God and Nature (but that is 'differentiated'). It doesn't sound like Hegel.