I also think that to achieve real success in life is impossible without knowing a foreign language, especially English. If you are a scientist you need it to read special literature and to take part in conferences. If you are a student, you have a chance to continue your studies abroad if you know English. If you want to be a good specialist in any field you need English to receive new information on your speciality.
That’s why I am very glad that I know English a little and I am going to learn it better in future