THE
ART
OF PRESERVING
HEALTH.
BOOK IV.
The PASSIONS.
THE choice of aliment, the choice of air,
The use of toil and all external things,
Already sung; it now remains to trace
What good what evil from ourselves proceeds:
5And how the subtle principle within
Inspires with health, or mines with strange decay
The passive body. Ye poetic Shades,
That know the secrets of the world unseen,
Assist
