It does not follow from this that human perfection is perfect self-realisation, in the sense of every power being realised to the utmost. The powers of man are many, not all of equally high quality. In man, much must be left in potentiality, if the best actuality that he is capable of is to be realised.
Perfection is actuality up to standard.
In a finite nature, the standard imposes limitations, according to the Aristotelian canon of the golden mean, a canon not framed for the infinite.