“I feel now that gastronomical perfection can be reached in these combinations: one person dining alone, usually upon a couch or a hill side; two people, of no matter what sex or age, dining in a good restaurant; six people, of no matter what sex or age, dining in a good home.
“Three or four people sometimes attain perfection either in public or in private, but they must be very congenial, else the conversation, both spoken and unsaid, which is so essential a counterpoint to the meal’s harmony, will turn dull and forced. Usually six people act as whets, or goads, in this byplay and make the whole more casual, if, perhaps, less significant.
“The six sould be capable of decent social behavior: that is, no two of them should be so much in love as to bore the others, nor at the opposite extreme should they be carrying on any sexual or professional feud which could put poison on the plates all must eat from. A good combination would be one married couple, for warm composure; one less firmly established, to add a note of investigation to the talk; and two strangers of either sex, upon whom the better-acquainted diners could sharpen their questioning wits.”
M.F.K. Fisher, An Alphabet for Gourmets