not alter her
course, and that no other worse accident will happen than what I already
feel. And besides, the condition of this disease is not unsuitable to my
prompt and sudden complexion: when it assaults me gently, I am afraid,
for 'tis then for a great while; but it has, naturally, brisk and
vigorous excesses; it claws me to purpose for a day or two. My kidneys
held out an age without alteration; and I have almost now lived another,
since they changed their state; evils have their periods, as well as
benefits: peradventure, the infirmity draws towards an end. Age weakens
the heat of my stomach, and, its digestion being less perfect, sends this
crude matter to my kidneys; why, at a certain revolution, may not the
heat of my kidneys be also abated, so that they can no more petrify my
phlegm, and nature find out some other way of purgation. Years have
evidently helped me to drain certain rheums; and why not these excrements
which furnish matter for gravel? But is there anything delightful in
comparison of this sudden change, when from an excessive pain, I come, by
the voiding of a stone, to recover, as by a flash of lightning, the
beautiful light of health, so free and full, as it happens in our sudden
and sharpest colics? Is there anything in the pain suffered, that one
can counterpoise to the pleasure of so sudden an amendment? Oh, how much
does health seem the more pleasant to me, after a sickness so near and so
contiguous, that I can distinguish them in the presence of one another,
in their greatest show; when they appear in emulation, as if to make head
against and dispute it with one another! As the Stoics say that vices
are profitably introduced to give value to and to set off virtue, we can,
with better reason and less temerity of conjecture, say that nature has
given us pain for the honour and service of pleasure and indolence. When
Socrates, after his fetters were knocked off, felt the pleasure of that
itching which the weight of them had caused in his legs, he rejoiced to
consider the strict alliance betwixt pain and pleasure; how they are
linked together by a necessary connection, so that by turns they follow
and mutually beget one another; and cried out to good AEsop, that he
ought out of this consideration to have taken matter for a fine fable.

The worst that I see in other diseases is, that they are not so grievous
in their effect as they are in their issue: a man is a whole year in
recovering,