Full Idea
Hegel believed, unlike Kant, that the categories of the understanding, when properly understood, disclose the nature of things in themselves and not just the character of things as they appear to us.
Gist of Idea
Hegel believe that the genuine categories reveal things in themselves
Source
report of Georg W.F.Hegel (Science of Logic [1816]) by Stephen Houlgate - Hegel p.101
Book Reference
'A Companion to Continental Philosophy', ed/tr. Critchley,S/Schroeder,W [Blackwell 1999], p.101
A Reaction
'Properly understood' sounds like 'no true Scotsman'. This is thoroughgoing idealism, because reality is determined by the activity of the mind, and not from outside. The Hegel story makes more sense if you see the categories as evolutionary.
Related Idea
Idea 22084 Authentic thinking and reality have the same content [Hegel]