[解疑]ultimate given是什么意思啊?

看一本human action的书,里面老是进步如许的一个概念,对读那本书时的理解有点影响

　　there are phenomena which can not be analyzed.they are the ultiamate given.the progress of scientific research may succeed in demonstrating that something previously considered as an ultimate given can be reduced to components.but there will always be some erreducible and unanalyzable phenomena,some ultimate given.