Full Idea
The concept of being contains within itself it own negation - nothing - and the dialectical opposition between these two concepts is resolved only in the passage to a new concept, becoming, which contains the truth of the passage from nothing to being.
Gist of Idea
The dialectical opposition of being and nothing is resolved in passing to the concept of becoming
Source
report of Georg W.F.Hegel (works [1812]) by Roger Scruton - Short History of Modern Philosophy Ch.12
Book Reference
Scruton,Roger: 'A Short History of Modern Philosophy' [ARK 1985], p.170
A Reaction
The idea that one concept 'contains' another, or that an opposition could be 'resolved' by a new concept, sounds doubtful to me. For most analytical philosophers, and for Aristotle, oppositions are contradictions, and cannot and should not be 'resolved'.