open sesame
noun
1.
any marvelously effective means for bringing about a desired result:
Wealth is the open sesame to happiness.
Origin
1785-95;
from the use of these words by Ali Baba to open the door of the robbers' den
Examples from the web for
open sesame
Big figures with the dollar mark before them are the
open sesame
to social recognition and political preferment.
British Dictionary definitions for
open sesame
open sesame
noun
1.
a very successful means of achieving a result
Word Origin
from the magical words used by Ali Baba in
The Arabian Nights' Entertainments
to open the door of the robbers' den