He will often have to scratch his head, and bite his nails to the quick. [To succeed he will have to puzzle his brains and work hard.]
HoraceI have reared a memorial more enduring than brass, and loftier than the regal structure of the pyramids, which neither the corroding shower nor the powerless north wind can destroy; no, not even unending years nor the flight of time itself. I shall not entirely die. The greater part of me shall escape oblivion.
Horace