Good language?

T. S. Eliot described it well.
' ... And every phrase / And sentence that is right (where every word is at home, /Taking its place to support the others, / The word neither diffident nor ostentatious, / An easy commerce of the old and the new, / The common word exact without vulgarity, / The formal word precise but not pedantic, / The complete consort dancing together)' - Four Quartets, Little Gidding (lines 216-23).