In that century in which keenness and cleverness were so intensively cultivated with the high pitch of the personal duel transferred to affairs of state, the complete self-control of diplomats, their quickness and their gift of taking advantage of any favorable turn in the situation, are certainly worthy of admiration, as we reanimate in our minds the life portrayed in these old memoirs and letters. Occasionally a mishap occurs like that of the British Minister, Mr. Drake, who boasted to Mehée de la Touche of the very careful precautions he had taken to guard his secret correspondence; which vainglory resulted quite disastrously to his collection of secrets. Instances of delightful cleverness and cool-headedness are frequent. Cardinal Mazarin, who in his methods and principles was quite the opposite to Cardinal d’Orsat and who was particularly free from any scruples whatsoever concerning the truth, won his first striking diplomatic success through a ruse. What a quick mind and daring spirit his, when on his first mission to the court of the Duke of Feria, as a very young man, he attained his object so completely. How otherwise could he have ascertained the true opinion of His Highness on the matter of great importance to the Court of France which Mazarin was especially sent to ascertain, as there were great doubts about it and the duke entirely unwilling to express himself? A keen observer, Mazarin had soon learned that the duke was irascible and unguarded when in anger; but few would have followed him in suddenly, out of the clear sky, deliberately, so stirring the duke to anger that he, entirely off his guard, blurted out things which unmistakably gave a clue to his real opinions on the important matter of state in question. What a vivid satisfaction the young man must have had, which, however, he needs must carefully conceal to feign grief and despair because he had been hapless enough to arouse the ill will of His Highness. Mazarin was throughout his life noted for a perfect command of the expressions of all the moods, sentiments and passions, used by him at will so that it was impossible for any one to penetrate his mask. The same achievement was attained in a notable manner by the great diplomats of the old school, Talleyrand and Metternich, who held the stage at the beginning of the nineteenth century; and it has been emulated in greater or less perfection by successive generations of Ministers, Counselors, and Secretaries.