Introduction , 21 Now compare these with the following translations of the same petition in Latin and its daughtei languages • Da nobis hodie panem nostrum quotidianum (Latin; Donne-nous aujourd'hui notre pain quotidien (French) Danos hoy nuestro pan cotidiano (Spanish) Dacci oggi il nostro pane cotidiano (Italian) O pao nosso dc cada dia dai-nos hoje (Portuguese) By the time you have read through the first five, you will probably have realized without recourse to a dictionary that they correspond to the English sentence Give us this day our daily bread. That the next five mean the same might also be obvious to a Frenchman,, though it may not be obvious to us if we do not already know Fiench, or a language like French If we are told that all ten sentences mean the same thing, it is not difficult to see that German, Dutch, Swedish, Danish, and Icelandic share with English common features which English does not share with the other five languages, and that French, Italian, Spanish, and Portuguese share with Latin common features which they do not share with the Germanic group It is a common belief that learning two languages calls for twice as much effort as learning one. This may be roughly true, if the two languages are not more alike than French and German, and if the beginner's aim is to speak either like a native If they belong to the same family, and if the beginner has a more modest end in view, it is not true Many people will find that the effort spent on building up a small, woikmanlike vocabulary and getting a grasp of essential grammatical peculiarities of four closely related languages is not much greater than the effort spent on getting an equivalent knowledge of one alone, The reason for this is obvious if we approach learning languages as a problem of applied biology The ease with which we remember things depends on being able to associate one thing with another In many branches of knowledge, a little learning is a difficult thing As an isolated act it is difficult, because extremely tedious, to memor- ize the peculiarities of each individual bone of a rabbit. When we realize that bones are the alphabet of the written record of evolution in tihe sedimentary rocks, the study of their peculiarities is full of interest Biologists with experience of elementary teaching know that it is far more satisfying—and therefore more easy—to learn the essential peculiarities of the bones of representative types from all the various classes of vertebrates than to memorize *n great detail the skeleton of