Now, with a simpleton a degree above the first, he would have
reasoned thus: 'This fellow finds that in the first instance I
guessed odd, and, in the second, he will propose to himself, upon the
first impulse, a simple variation from even to odd, as did the first
simpleton; but then a second thought will suggest that this is too
simple a variation, and finally he will decide upon putting it even
as before. I will therefore guess even;' - he guesses even, and wins.
Now this mode of reasoning in the schoolboy, whom his fellows termed
'lucky,' - what, in its last analysis, is it?"

"It is merely," I said, "an identification of the reasoner's
intellect with that of his opponent."

"It is," said Dupin; "and, upon inquiring, of the boy by what means
he effected the thorough identification in which his success
consisted, I received answer as follows: 'When I wish to find out how
wise, or how stupid, or how good, or how wicked is any one, or what
are his thoughts at the moment, I fashion the expression of my face,
as accurately as possible, in accordance with the expression of his,
and then wait to see what thoughts or sentiments arise in my mind or
heart, as if to match or correspond with the expression.' This
response of the schoolboy lies at the bottom of all the spurious
profundity which has been attributed to Rochefoucault, to La Bougive,
to Machiavelli, and to Campanella."

"And the identification," I said, "of the reasoner's intellect with
that of his opponent, depends, if I understand you aright, upon the
accuracy with which the opponent's intellect is admeasured."

"For its practical value it depends upon this," replied Dupin; "and