I look upon it as being a great part of the art to be able to
judge properly of that which has been written. For he that knows and
makes a proper use of these things, would appear to me not likely
to commit any great mistake in the art. He ought to learn accurately
the constitution of every one of the seasons, and of the diseases;
whatever that is common in each constitution and disease is good,
and whatever is bad; whatever disease will be protracted and end in
death, and whatever will be protracted and end in recovery; which
disease of an acute nature will end in death, and which in recovery.
From these it is easy to know the order of the critical days, and
prognosticate from them accordingly. And to a person who is skilled
in these things, it is easy to know to whom, when, and how aliment
ought to be administered.