too zealous

See: perfervid
References in classic literature ?
I would take my courage in both hands and ask her to go, for besides this superfluity of discreet behaviour she is, although only nursery, much too zealous, and inclined to be always teaching and never playing; but, unfortunately, the April baby adores her and is sure there never was any one so beautiful before.
Hustler: Raul Mondesi can sometimes be a little too zealous on the basepaths.