John Rupert Firth quotes
The study of such words as work, labour, trade, employ, occupy, play, leisure, time, hours, means, self-respect, in all their derivatives and compounds in sociologically significant contexts during the last twenty years would be quite enlightening. So would the study of words particularly associated with the dress, occupations, and ambitions of women, or the language of advertising, especially of quackery, entertainments, food, drink, or of political movements and propaganda.
John Rupert Firth
The various structures of sentences in any given language, comprising for example at least two nominal pieces and a verbal piece must be collated, and such categories as voice, mood, affirmative, negative, tense, aspect, gender, number, person and case, if found applicable and valid in descriptive statement, are to be abstracted from, and referred back to the sentence as a whole.
John Rupert Firth