Similar incidents might be quoted from the biographies of almost all the great composers. Berlioz, in his essay on Music, after referring to the story of Alexander the Great, who fell into a delirium at the accents of Timotheus, and the story of the Danish King Eric, "whom certain songs made so furious that he killed some of his best servants," dwells on the inconsistency of Rousseau, who, while ridiculing the accounts of the wonders worked by ancient music, nevertheless, "seems in other places to give them enough credence to place that ancient art, which we hardly know at all, and which he himself knew no better than the rest of us, far above the art of our own day." For himself, Berlioz believed that the power of modern music is of at least equal value with the doubtful anecdotes of ancient historians. "How often," he says, "have we not seen hearers agitated by terrible spasms, weep and laugh at once, and manifest all the symptoms of delirium and fever, while listening to the masterpieces of our great masters." He relates the case of a young Provencal musician, who blew out his brains at the door of the Opera after a second hearing of Spontini's "Vestale," having previously explained in a letter, that after this ecstatic enjoyment, he did not care to remain in this prosaic world; and the case of the famous singer Malibran, who, on hearing Beethoven's Fifth Symphony for the first time, at the Conservatoire, "was seized with such convulsions that she had to be carried out of the hall." "We have in such cases," Berlioz continues, "seen time and again, serious men obliged to leave the room to hide the violence of their emotions from the public gaze." As for those feelings which Berlioz owed personally to music, he affirms that nothing in the world can give an exact idea of them to those who have not experienced them. Not to mention the moral affections that the art developed in him, and only to cite the impressions received at the moment of the performance of works he admired, this is what he says he can affirm in all truthfulness: "While hearing certain pieces of music, my vital forces seem at first to be doubled; I feel a delicious pleasure, in which reason has no part; the habit of analysis itself then gives rise to admiration; the emotion, growing in the direct ratio of the energy and grandeur of the composer's ideas, soon produces a strange agitation in the circulation of the blood; my arteries pulsate violently; tears, which usually announce the end of the paroxysm, often indicate only a progressive stage which is to become much more intense. In this case there follow spasmodic contractions of the muscles, trembling in all the limbs, a total numbness in the feet and hands, partial paralysis of the optic and auditory nerves. I can no longer see, I can hardly hear: vertigo ... almost swooning...." Such was the effect of music on Berlioz.