«اِلْجِدِيدِ الْأَبْيَضْ يِنْفَعْ فِي النَّهَار الْإِسْوِدْ»

This saying encourages people to be thrifty while times are good, so that something is left for when hardship arrives. A coin held back during prosperity is pictured as the very thing that comes to the rescue on a grim day.

The jidid was a silver coin that later went out of circulation; it can be understood simply as saved money. 'White' refers to the silver and the 'black day' to a time of distress, not to literal colours or to people.

Suitable when urging someone to spend carefully and put some money aside during a period of plenty, so that they will have resources to fall back on when difficult times come.