add another anecdote
concerning blindness. Pliny reports of one who, dreaming he was blind,
found himself so indeed in the morning without any preceding infirmity in
his eyes. The force of imagination might assist in this case, as I have
said elsewhere, and Pliny seems to be of the same opinion; but it is more
likely that the motions which the body felt within, of which physicians,
if they please, may find out the cause, taking away his sight, were the
occasion of his dream.

Let us add another story, not very improper for this subject, which
Seneca relates in one of his epistles: "You know," says he, writing to
Lucilius, "that Harpaste, my wife's fool, is thrown upon me as an
hereditary charge, for I have naturally an aversion to those monsters;
and if I have a mind to laugh at a fool, I need not seek him far; I can
laugh at myself. This fool has suddenly lost her sight: I tell you a
strange, but a very true thing she is not sensible that she is blind, but
eternally importunes her keeper to take her abroad, because she says the
house is dark. That what we laugh at in her, I pray you to believe,
happens to every one of us: no one knows himself to be avaricious or
grasping; and, again, the blind call for a guide, while we stray of our
own accord. I am not ambitious, we say; but a man cannot live otherwise
at Rome; I am not wasteful, but the city requires a great outlay; 'tis
not my fault if I am choleric--if I have not yet established any certain
course of life: 'tis the fault of youth. Let us not seek our disease out
of ourselves; 'tis in us, and planted in our bowels; and the mere fact
that we do not perceive ourselves to be sick, renders us more hard to be
cured. If we do not betimes begin to see to ourselves, when shall we
have provided for so many wounds and evils wherewith we abound? And yet
we have a most sweet and charming medicine in philosophy; for of all the
rest we are sensible of no pleasure till after the cure: this pleases and
heals at once." This is what Seneca says, that has carried me from my
subject, but there is advantage in the change.

CHAPTER XXVI

OF THUMBS

Tacitus reports, that amongst certain barbarian kings their manner was,
when they would make a firm obligation, to join their right hands close
to one another, and intertwist their thumbs; and when, by force of
straining the blood, it appeared in the ends, they lightly pricked them
with some sharp instrument, and mutually su