be–all and end–all 
/ˈbi:ˌɑ:ləndˈɛndˌɑ:l/ noun
/ˈbi:ˌɑ:ləndˈɛndˌɑ:l/ noun Meaning:
the be-all and end-all
: the most important part of something or the reason for something
▪ He acts as if making money is the be-all and end-all of human existence.
▪ He acts as if making money is the be-all and end-all of human existence.
