Jade and men, both are sharpened by hard tools. (Chinese) Man must be sharpened on man, like knife on stone. (Chinese) Too keen an edge does not cut, too fine a point does not pierce....

n. In some early Germanic languages, the reinforcement of geminate glides with plosives, as in the Gothic development of ww to ggw and of jj to...

Sharpening is the process of creating or refining a sharp edge of appropriate shape on a tool or implement designed for cutting. Sharpening is done by grinding away material on the implement with an abrasive substance harder than the material of the...