316 UNIFORMITY Ch. IX.
ted without intermissioti , makes the operator lan-
gssiffi, and lose vigor: he complains neither of
too great labor, nor of too little' aflion ; but
regrets the want os variety, and the being obliged
to do the lame thing over and over: where the
operation is sufficiently varied, the mind retains its
vigor , and is pleased with its condition. Aflions
again create uneasiness when excessive in number
or variety, though in every other resped pleasant :
thus a throng os busmess in law, in physic, or in
traffic, distresses and dissra'tis the mind, unless
where a habit of application is acquired by long
and constant exercise : the excessive variety is the
distressing circumstance ; and the mind sussers
grievoussy by being kept constantly upon the
stretch.
With relation to involuntary causes disturbing
that degree of variety which nature requires, a
ssight pain affeffing one part of the bodv without
variation , becomes, by its constancy and long du-
ration , almost insupportable : the patient, sensible
that the pain is not increased in degree , complains
of its constancy more than of its severity, of its
engrossing his whole thoughts , and admitting no
other object. A sliifting pain is more tolerable, be-
cause change of place contributes to variety : and
an intermitting pain, suffering other obiefls to in-
tervene , hill more so. Again , any Angle color
or sound osten returning becomes unpleasant; as
may be observed in viewing a train of similar
ted without intermissioti , makes the operator lan-
gssiffi, and lose vigor: he complains neither of
too great labor, nor of too little' aflion ; but
regrets the want os variety, and the being obliged
to do the lame thing over and over: where the
operation is sufficiently varied, the mind retains its
vigor , and is pleased with its condition. Aflions
again create uneasiness when excessive in number
or variety, though in every other resped pleasant :
thus a throng os busmess in law, in physic, or in
traffic, distresses and dissra'tis the mind, unless
where a habit of application is acquired by long
and constant exercise : the excessive variety is the
distressing circumstance ; and the mind sussers
grievoussy by being kept constantly upon the
stretch.
With relation to involuntary causes disturbing
that degree of variety which nature requires, a
ssight pain affeffing one part of the bodv without
variation , becomes, by its constancy and long du-
ration , almost insupportable : the patient, sensible
that the pain is not increased in degree , complains
of its constancy more than of its severity, of its
engrossing his whole thoughts , and admitting no
other object. A sliifting pain is more tolerable, be-
cause change of place contributes to variety : and
an intermitting pain, suffering other obiefls to in-
tervene , hill more so. Again , any Angle color
or sound osten returning becomes unpleasant; as
may be observed in viewing a train of similar