Письмо на языке. о там как важно знать иностранный язык. не больше 140 слов и меньше 120

Foreign languages can give you everything. You can communicate with people from different countries, study and work in different countries. .
Every innovation, technologies is appear on English language. If you understand English you can explore it earlier than other people who don't know other languages. 
In conclusion the most important advantage of other languages is understanding the mind of foreign person. When you are studing foreign language you are studing a mental of this country.