hauptsache

noun
  1. The main thing or the most important aspect of something. noun
    The hauptsache is that everyone arrived safely.
    In planning the event, the hauptsache was ensuring that all guests felt welcome.
  2. The essence or core of a matter, often used to emphasize the primary concern or focus. noun
    Despite the challenges, the hauptsache is that the project was completed on time.
    In any negotiation, the hauptsache should be finding a mutually beneficial solution.