Shakespeare's knowledge of mankind has become proverbial: in this his superiority is so great that he has justly been called the master of the human heart. A readiness to remark the mind's fainter and involuntary utterances, and the power to express with certainty the meaning of these signs, as determined by experience and reflection, constitute "the observer of men;" but tacitly to draw from these still further conclusions and to arrange the separate observations according to grounds of probability into a just and valid combination—this, it may be said, is to know men. The distinguishing property of the dramatic poet who is great in characterization, is something altogether different here, and which, take it which way we will, either includes in it this readiness and this acuteness, or dispenses with both. It is the capability of transporting himself so completely into every situation, even the most unusual, that he is enabled, as plenipotentiary of the whole human race, without particular instructions for each separate case, to act and speak in the name of every individual. It is the power of endowing the creatures of his imagination with such self-existent energy that they afterward act in each conjuncture according to general laws of nature: the poet, in his dreams, institutes, as it were, experiments which are received with as much authority as if they had been made on waking objects. The inconceivable element herein, and what moreover can never be learned, is, that the characters appear neither to do nor to say anything on the spectator's account merely; a