|Concorde - the result of a good compromise. Image from here.|
It is said that it was official policy for all the engineers to speak in their own language. The English spoke English and understood French spoken by the French. The French reciprocated. This was deemed to be the best way to minimise the likelihood of misunderstandings. It was known as 'The Concorde Compromise'.
After all, the plane worked pretty well - at least until failure to upgrade and maintain one of the French planes let down a great design.
It is also said that another big European technological project has adopted a different solution to the same problem.
'The CERN compromise' is different. It requires the French to learn English, and the English to learn to shake hands!
Small note - It is customary in France to shake hands with your colleagues at work every day. In England it is customary to shake hands with a colleague once - the first time you meet them - and almost never again. Aren't both of these options strange?