Leonardo da Vinci: A vase of unbaked clay, when broken, may be remoulded, but not a baked one.

A vase of unbaked clay, when broken, may be remoulded, but not a baked one. — Leonardo da Vinci

A vase of unbaked clay, when broken, may be remoulded, but not a baked one.

Source: Wikiquote (CC BY-SA 3.0). Quotations may be subject to their authors' rights and may be shown in translation.