It is tempting to rely on translations to one's native language.  There are several good reasons that is a bad idea:

  1. poor quality - generally the translation comes from a third party, not the experts
  2. slow
  3. engage - fruitfully interact with clients, customers, and world-class experts not just passively consume
  4. think different - to speak English well you must be able to think English, the key to humanity's knowledge