Related:

• Iron rusts from disuse; water loses its purity from stagnation and in cold weather becomes froze
  even so does inaction sap the vigors of the mind. -- Leonardo da Vinci...
• As the Iron Curtain rusts...
• Nothing that is alive remains unchanging. All Nature changes from day to day and minute to minute, only the dead stop growing and are quiescent.
  Fresh water runs on, and if you stop it, it becomes stagnant....
• Laundry instructions on a shirt made by HEET (Korea)
  For best results: Wash in cold water separately, hang dry and iron with warm iron....
• The tree in which the sap is stagnant remains fruitless. -- Hosea Ballou
• No religion can long continue to maintain its purity when the church becomes the subservient vassal of the state.
  -- Felix Adle...
• Many are cold, but few are frozen.
• Producing a system from a specification is like walking on water--it's easier if it's frozen.