These are the opening lines of an academic journal article on the Scots language, published in the journal English World-Wide and originally presented at the academic symposium Our ain lied? (our own language?). Scots is generally considered its own (de-creolised) language, though it forms a continuum with Scottish English and resulted from creolisation between Scots Gaelic and English.
You probably needed a translation for this one. Here you go:
In the development of language to full maturity of literature, the establishment of an expository prose is often judged a crucial stage. A language may have a well-founded tradition of domestic song, learned poetry, and even narrative prose; but lacking a register suitable for academic writers, it must remain a “half-language”.