ما يحَكّ للحَيّ لَذّ مِن يده

A Libyan proverb from dormirdebout.wordpress.com

ما يحَكّ للحَيّ لَذّ مِن يده

Literal meaning: Nothing can scratch your itch but your own hand.
 Meaning: No one will do your job or look after your interests. I think this is similar to the English proverb "God helps those who help themselves'.