reflecting and reasoning; though of this in fact we know nothing.

We have every reason to believe that the mind cannot subsist
without the body; at least we must be very different creatures
from what we are at present, when that shall take place. For a
man to think, agreeably and with serenity, he must be in some
degree of health. The corpus sanum is no less indispensible than
the mens sana. We must eat, and drink, and sleep. We must have
a reasonably good appetite and digestion, and a fitting
temperature, neither too hot nor cold. It is desirable that we
should have air and exercise. But this is instrumental merely.
All these things are negatives, conditions without which we
cannot think to the best purpose, but which lend no active
assistance to our thinking.

Man is a godlike being. We launch ourselves in conceit into
illimitable space, and take up our rest beyond the fixed stars.
We proceed without impediment from country to country, and from
century to century, through all the ages of the past, and through
the vast creation of the imaginable future. We spurn at the
bounds of time and space; nor would the thought be less futile
that imagines to imprison the mind within the limits of the body,
than the attempt of the booby clown who is said within a thick
hedge to have plotted to shut in the flight of an eagle.

We never find our attention called to any particular part or
member of the body, except when there is somewhat amiss in that
part or member. And, in like manner as we do not think of any
one part or member in particular, so neither do we consider our
entire microcosm and frame. The body is apprehended as no more