Language has always been a point of debate, literally, across the globe. And English seems to be the undisputed winner.
But does this mean that thoughts in other languages are not worth their while?
If that were true, then the world over people would not be reading literature in translation or watching films with subtitles. And this holds true not only for English literature and films, but also for World Cinema.
It is a little ironical to write in English about the importance of languages besides English. Maybe because English is widely accepted and understood. But it is not to say that other languages are not important. Any language that you think and feel in is important.
I don't know how would Albert Einstein, Fyodor Dostoevsky and Armand Peugeot fair in a TOEFL exam. Nevertheless, their contributions to their respective fields and the world cannot be thrown out of the window because their mother-tongue wasn't English.
English does not ensure a progressive thought process or genius. All it ensures is a better medium of communication.