It is a tricky business, indeed. ...However, one can demand one thing: That the translator has command of both languages. He not always has. ... One does not only need to have an encyclopedia, one needs to have sure instinct. Most do not even have an encyclopedia.
Kurt Tucholsky (1890 - 1935)
It's the economy, stupid! Frequently one has to translate from the A-language into the A-language.
You are familiar with that from kindergarten....