This is a quote about the LXX translators – well, at least one – from Moulton’s Prolegomena.

The Greek translator, endeavouring to be as literal as he could, nevertheless took care to use Greek that was possible, however unidiomatic ^a—a description well suiting the kind of language used in every age by translators who have gained the conscientious accuracy, but not the sure-footed freedom, of the mature scholar.

James Hope Moulton, A Grammar of New Testament Greek, Volume 1: Prolegomena. (Vol. 1: 2d ed.; Edinburgh: T. & T. Clark, 1906), 76.

Why should we choose “conscientious accuracy” over “the sure-footed freedom of the mature scholar”?