Men of great parts are often unfortunate in the management of public business, because they are apt to go out of the common road by the quickness of their imagination. the clerks in [Lord Bolingbroke's] office used a sort of ivory knife with a blunt edge to divide a sheet of paper, which never failed to cut it even, only requiring a steady hand; whereas if they should make use of a sharp penknife, the sharpness would make it go often out of the crease and disfigure the paper.