English unite. Finally, after failed attempts with Esperanto and others, lots of educated people understand this single common language. Life is much easier. I am Czech and there are so little info in Czech on any technical subject so I rather search info straight in English. What I hate about Europe are these language barriers. There are so many countries with different languages, it is annoying that one is expected to talk differently after driving just 100 km. German, Polish, Slovak, Italian, Spanish, ...argh. This single language is a big advantage of USA! They will understand you in Miami, as they will in North Dakota or California. Very cool!