be-all
noun uk/ˈbiː.ɔːl/ us/ˈbiː.ɑːl/
the be-all and end-all 最重要的事；一切的一切
the most important thing
We all agreed that winning was not the be-all and end-all. 我们都同意，获胜并不是最重要的事情。
It was the period when everyone saw men in space as the be-all and end-all of space exploration. 那时候，人人都把载人上太空看作是太空探索最重要的事。