The question discussed in this thread is _not_: Would it be beneficial to have all scientific papers in one language? It is: Would it be beneficial to have all literature, discussions, jokes, poems and songs in one language. A question, that Newton's work and the amount of NSF funded papers in 2015 has absolutely no relation to.
[1] https://en.wikipedia.org/wiki/%C3%89l%C3%A9ments_de_g%C3%A9o...
The non-mathamtical language used in mathamatics papers is easily translated, but understanding the maths is impossible without the required background and it can't be translated into any natural human language. Maths uses a synthetic symbolic language which mathematicians around the world share allowing them to communicate - in the natural sciences we use English instead.
Well, no shit? The only language you speak is English. Any concepts that are foreign or difficult to explain in English would probably be out of your realm of understanding.