Victor Hugo said this quote

The guillotine is the ultimate expression of Law, and its name is vengeance; it is not neutral, nor does it allow us to remain neutral. All social questions achieve their finality around that blade. The scaffold is an image. It is not merely a framework, a machine, a lifeless mechanism of wood, iron, and rope. It is as though it were a being having its own dark purpose, as though the framework saw, the machine listened, and the mechanism understood; as though that arrangement of wood and iron and rope expressed a will. In the hideous picture which its presence evokes it seems to be most terribly a part of what it does. It is the executioner's accomplice; it consumes, devouring flesh and drinking blood. It is a kind of monster created by the judge and the craftsman; a spectre seeming to live an awful life born of the death it deals.