Terms of address are the words we use when we speak to someone. The circumstances in which they are used are the same everywhere: when we call to someone; when we meet someone; when we want to attract someone's attention; when we speak to one person in a group—to ask a question or to give an order; at the beginning of a discourse; on an envelope; and at the beginning of a letter. Nevertheless, it depends on a particular society whether the use of these terms, in a given circumstance, is necessary or not. In Chinese, for example, when one meets someone he knows, he is not obliged to call him by name, title or any other term. The most normal attitude is to ask a question about what he is doing, a question whose objective depends on the circumstances and whose form depends on the degree of familiarity one has with the person addressed.

For three centuries Europe has been holding forth on the advantages and disadvantages of the Chinese system of writing.

At first, judgments were positive. The abundant correspondence “à la Chine” of the missionaries inspired a number of commentaries in the early years of the 17th century and even roused the admiration of Leibnitz for a system which he considered, briefly, completely rational. At that time, the Chinese Empire was one of the most important in the world, and the number of techniques coming from the East was not negligible. But while in Europe modern science was being confirmed, China's evolution proceeded very slowly.