Speakers who have grown up in the American community unconsciously know its rules about taking turns in conversations-in the same way that they know the rules of grammar and the rules about appropriate speech in various situations.

Men in all societies possess the biological equipment to remove their hats or shoes, but it is the birth within a particular culture that decides that a Jew will keep his hat and shoes on in his place of worship, a Mohammedan will take off his shoes, and a Christian will keep his shoes on but remove his hat.

Letters to the editors of English and American newspapers often contain expressions of horror about the new terms that creep into the language, and these expressions are usually accompanied by dire predictions about ruination of the mother tongue.

Food to a large extent is what holds a society together, and eating is closely linked to deep spiritual experiences.

A complex society is not necessarily more advanced than a simple one; it has just adapted to conditions in a more complicated way.

At every moment of his life the Shoshone must be careful to observe the complicated folkways of his group, to do reverence to superhuman powers, to remember the courtesies and obligations of family, to pay homage to certain sacred plants, or to avoid particular places.

Gestures and facial expressions do indeed communicate, as anyone can prove by turning off the sound on a television set and asking watchers to characterize the speakers from the picture alone.