Full Idea
The absolute idea alone is being, imperishable life, self-knowing truth, and is all truth. ....All else is error, confusion, opinion, endeavour, caprice, and transitoriness.
Gist of Idea
The absolute idea is being, imperishable life, self-knowing truth, and all truth
Source
Georg W.F.Hegel (Science of Logic [1816], II.iii.3 p.824), quoted by A.W. Moore - The Evolution of Modern Metaphysics 07.4
Book Reference
Moore,A.W.: 'The Evolution of Modern Metaphysics' [CUP 2013], p.170
A Reaction
Hegel sounding a bit too much like an over-excited preacher here. The absolute idea seems to be the unified totality of all truths about reality. For Hegel human self-awareness is a big part of that. The idea is being because there is only one substance.
Related Idea
Idea 21976 The absolute idea is the great unity of the infinite system of concepts [Hegel, by Moore,AW]