We need a new language. Something more logical.
I've always thought that an International phonetic alphabet would be a good idea.
Some of the letters would be the same as those in the Latin alphabet we use, but there are language sounds in other languages that don't appear in English, like the French nasal N in 'bon', or the 'horking' H sound in Yiddish 'chutzpah'. There are, however, a limited number of sounds used in speech, and it wouldn't be difficult to make a symbol for each.
If signs/ literature, etc. were written in the predominant language(s) of a country or region, and also in the phonetic alphabet, anyone who could speak a language could also read it, and anyone who could read the translated version in the phonetic alphabet could say what they read. Something similar to 'google translate' with the translated text appearing in one's own language, in the applicable foreign language, and in the phonetic text could effectively be a universal translator.