«مَا يِتْعِمِلْشْ كِيسْ حَرِيرْ مِنْ وِدْنْ خَنْزِيرْ»

Phrased in colloquial rather than Standard Arabic, the saying holds that what something is made from limits what it can become. A coarse, lowly starting material cannot be turned into an elegant, valuable product, however much skill or effort is spent on it.

It works as a blunt reality check, discouraging wasted labor on something unsuitable from the outset. The silk bag stands for refinement and the pig's ear for worthless raw stuff.

Use it when someone expects a fine result from poor material, such as a worthless object, a badly flawed plan, or an unpromising start. Applied to a person, it can sound insulting, since it likens them to a pig, an animal widely regarded as unclean in many Arabic-speaking settings.