A 
correspondent from the Czech Republic asks a powerful question:“How would you 
encourage English language learners at secondary and postsecondary schools; what do they have to be careful about and what joys can they expect when 
dealing with a language ofsome 2 billion speakers worldwide?”
In a way, the question answers itself. English enables you to 
communicate with a third of the world's
population, and that has to be a plus on the 
agendaof anyone with an international outlook. That third, moreover, is hugely 
diverse. English is present, as a first, second, or foreign language, in every country in the world.
So, in using it as a tool, you have an unparallelled 
opportunity to 
explore the 
individuality of nations and peoples. The 
metaphor of the tool is important. English is not a pri, through which you see others. It is a tool which enables you to have a close 
encounter with others.
Culture is not wholly 
dependent on language, but it does need language to explain its
uniqueness—an experience all travellers have had, as they watch, say, a local folk dance and wonder what it is all about.
However, the 
metaphor of the tool only goes so far, because you can change the character of the tool to suit your purposes. If you have adopted English as one of your languages, then you are able to 
adapt it— to take personal 
ownership of it.
One of the great joys of making 
headway in a new language is that you can use it to talk about what you want to talk about—and if that means inventing new words, to express your local experience, then do not hesitate to 
invent them. Just translating the culture of your 
school and town into English—such as the names of localities and personalities—will immediately add dozens of new expressions. Don't 
restrict yourself to the words that are already in the dictionaries.
English is yours now. The words and expressions you and your fellows 
invent today might be in the dictionaries of tomorrow, if they catch on. You're doing nothing that hasn't already been done thousands of times before. New words were added to English within days of the first settlers arriving in America from Britain, and the same 
pattern has been observed in all countries where a
community of users has evolved.
What you find yourselves doing you will see being done elsewhere. So to 
adopt the 
motto of the scouting 
movement—be prepared. Be prepared for 
linguistic diversity, change, playfulness, and
creativity wherever you listen and look on radio and television, in the 
press,literature, film, pop music, the internet...
Develop a sense of the kind of English that is 
appropriate to 
particular circumstances. And make it your major aim to be so in 
control of your own English that you can 
vary it to suit the circumstances in which you find yourself. Your goal is not to learn English, but Englishes.The same
principle applies to any language, of course, but it is particularly important in the case of English because of its 
global reach.