hobbyhorsical

— 'Twas well my father's passions lasted not long; for so long as they did last, they led him a busy life on't, and it is one of the most unaccountable problems that ever I met with in my observations of human nature, that nothing should prove my father's mettle so much, or make his passions go off so like gun-powder, as the unexpected strokes his science met with from the quaint simplicity of my uncle Toby's questions.—Had ten dozen of hornets stung him behind in so many different places all at one time,—he could not have exerted more mechanical functions in fewer seconds,—or started half so much, as with one single quære of three words unseasonably popping in full upon him in his hobbyhorsical career.