"Take heed what yon promise, see that it be just, and honest, and lawful, and what is in your power honestly and certainly to perform ; and when you have so promised, be true to your word. " - —Sir Matthew Hale

Dalili da aka ba aka ba da sassan yankunan da suka dace wanda masu sayarwa za su iya amfani da su don gudanar da bincike da gwada gwagwarmayar fasahar su da kuma inganta sakon su don sake tabbatar da masu amfani.
