Tenacity is a certain quality of the human hand in its relation to the coin of the realm. It attains its highest development in the hand of authority and is considered a serviceable equipment for a career in politics.
Ambrose Bierce
If any one faculty of our nature may be called more wonderful than the rest, I do think it is memory. The memory is sometimes so retentive, so serviceable, so obedient--at others, so bewildered and so weak--and at others again, so tyrannic, so beyond cont...
Jane Austen
Those who get their living by their daily labor . . . have nothing to stir them up to be serviceable but their wants which it is a prudence to relieve, but folly to cure.
Anne Hedges