I am perhaps slightly better versed in the English language than the average person (although admittedly no expert at it). But language is such a large field that we are continually learning about it, no matter where our understanding might currently fall on the scale of English speakers.
In reading Paul Clifford, by Lord Lytton, I ran across this sentence: "In each of these three, I believe without vanity, I am a profound adept!" I must confess that I had never noticed "adept" being used as a noun, but it is entirely proper. Just one of those things I had overlooked. We can learn something every day - if we pay attention.