And all the magazines of learning fortified:
From thence to look below on human kind,
Bewilder'd in the maze of life, and blind. DRYDEN.

The institution has, indeed, continued to our own time; the garret is
still the usual receptacle of the philosopher and poet; but this, like
many ancient customs, is perpetuated only by an accidental imitation,
without knowledge of the original reason for which it was established.

_Causa latet; res est notissima_.

The cause is secret, but th' effect is known. ADDISON.

Conjectures have, indeed, been advanced concerning these habitations of
literature, but without much satisfaction to the judicious inquirer.
Some have imagined, that the garret is generally chosen by the wits as
most easily rented; and concluded that no man rejoices in his aerial
abode, but on the days of payment. Others suspect, that a garret is
chiefly convenient, as it is remoter than any other part of the house
from the outer door, which is often observed to be infested by
visitants, who talk incessantly of beer, or linen, or a coat, and repeat
the same sounds every morning, and sometimes again in the afternoon,
without any variation, except that they grow daily more importunate and
clamorous, and raise their voices in time from mournful murmurs to
raging vociferations. This eternal monotony is always detestable to a
man whose chief pleasure is to enlarge his knowledge, and vary his
ideas. Others talk of freedom from noise, and abstraction from common
business or amusements; and some, yet more visionary, tell us, that the
faculties are enlarged by open prospects, and that the fancy is at more
liberty, when the eye ranges without confinement.

These conveniences may perhaps all be found in a well-chosen garret; but
surely they cannot be supposed sufficiently important to have operated
unvariably upon different climates, distant ages, and separate nations.
Of an universal practice, there must still be presumed an universal
cause, which, however recondite and abstruse, may be perhaps reserved to
make me illustrious by its discovery, and you by its promulgation.

It is universally known that the faculties of the mind are invigorated
or weakened by the state of the body, and that the body is in a great
measure regulated by the various compressions of the ambient element.
The effects of the air in the production or cure of corporeal maladies
have been acknowledged from the time of Hippocrates; but