The physician must be able to tell the antecedents, know the present, and foretell the future — must mediate these things, and have two special objects in view with regard to disease, namely, to do good or to do no harm.

Rest as soon as there is pain.

Whenever a doctor cannot do good, he must be kept from doing harm.

Look well to the spine for the cause of disease.

And he will manage the cure best who has foreseen what is to happen from the present state of matters.

The chief virtue that language can have is clarity.

It is more important to know the person who has the condition than it is to know the condition the person has.