the notion of ideality just lies in its being the truth of reality.
 Georg Wilhelm Friedrich Hegel, Science of Logic (1816). copy citation

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Author Georg Wilhelm Friedrich Hegel
Source Science of Logic
Topic reality truth
Date 1816
Language English
Reference
Note Translated by William Wallace
Weblink http://www.gutenberg.org/files/55108/55108-h/55108-h.htm

Context

“which amounts to saying that natural things never attain a free Being-for-self, but as limited to Being-there-and-then, are always and only Being for an other.—Again, Being-for-self may be described as ideality, just as Being-there-and-then was described as reality. It is said, that besides reality there is also an ideality. Thus the two categories are made equal and parallel. Properly speaking, ideality is not somewhat [Pg 180] outside of and beside reality: the notion of ideality just lies in its being the truth of reality. That is to say, when reality is explicitly put as what it implicitly is, it is at once seen to be ideality. Hence ideality has not received its proper estimation, when you allow that reality is not all in all, but that an ideality must be recognised outside of it.” source