People who think of themselves as tough-minded and realistic, among them influential political leaders and businessmen as well as go-getters and hust… - S. I. Hayakawa

The process by means of which human beings can arbitrarily make certan things stand for other things may be called the symbolic process. Whenever two or more human beings can communicate with each other, they can, by agreement, make anything stand for anything. For example, here are two symbols: X Y We can agree to let X stand for buttons and Y for bows; then we can freely change our agreement and let X stand for [...] North Korea, and Y for South Korea. We are, as human beings, uniquely free to manufacture and manipulate and assign values to our symbols as we please. Indeed, we can go further by making symbols that stand for symbols. [...] This freedom to create symbols of any assigned value and to create symbols that stand for symbols is essential to what we call the symbolic process.

A human being, then, is never dependent on his own experience alone for his information. Even in a primitive culture he can make use of the experience of his neighbors, friends, and relatives, which they communicate to him by means of language. Therefore, instead of remaining helpless because of the limitations of his own experience and knowledge, instead of having to discover what others have already discovered, instead of explporing the false traits they explored and repeating their errors, he can go on from where they left off. Language, that is to say, makes progress possible.

Whether he realizes it or not, however, Mr. Mets is affected every hour of his life not only by the words he hears and uses, but also by his unconscious assumptions about language. [...] Such unconscious assumptions determine the effect that words have on him -- which in turn determines the way he acts, whether wisely or foolishly. Words -- the way he uses them and the way he takes them when spoken by others -- largely shape his beliefs, his prejudices, his ideals, his aspirations. They constitute the moral and intellectual atmosphere in which he lives -- in short, his semantic environment.