en

Separate the men from the boys

ru

Translation separate the men from the boys into russian

separate the men from the boys
This challenging course will separate the men from the boys.
Этот сложный курс отделит мужчин от мальчиков.

Definitions

To distinguish between those who are capable and competent (the men) and those who are inexperienced or less capable (the boys), often in a challenging situation or competitive environment.