Nor did they judge amiss, for he exposed himself to many hazards in the battles which he fought, and received very severe wounds, but the greatest loss in his army was occasioned through the unwholesomeness of the air and the want of necessary provisions. But he still applied himself to overcome fortune and whatever opposed him, by resolution and virtue, and thought nothing impossible to true intrepidity, and on the other hand nothing secure or strong for cowardice. It is told of him that when he besieged Sisimithres, who held an inaccessible, impregnable rock against him, and his soldiers began to despair of taking it, he asked Oxyartes whether Sisimithres was a man of courage, who assuring him he was the greatest coward alive, "Then you tell me," said he, "that the place may easily be taken, since what is in command of it is weak." And in a little time he so terrified Sisimithres that he took it without any difficulty. At an attack which he made upon such another precipitous place with some of his Macedonian soldiers, he called to one whose name was Alexander, and told him he at any rate must fight bravely if it were but for his name's sake. The youth fought gallantly and was killed in the action, at which he was sensibly afflicted. Another time, seeing his men march slowly and unwillingly to the siege of the place called Nysa, because of a deep river between them and the town, he advanced before them, and standing upon the bank, "What a miserable man," said he, "am I, that I have not learned to swim!"and then was hardly dissuaded from endeavouring to pass it upon his shield. Here, after the assault was over, the ambassadors who from several towns which he had blocked up came to submit to him and make their peace, were surprised to find him still in his armour, without any one in waiting or attendance upon him, and when at last some one brought him a cushion, he made the eldest of them, named Acuphis, take it and sit down upon it. The old man, marvelling at his magnanimity and courtesy, asked him what his countrymen should do to merit his friendship. "I would have them," said Alexander, "choose you to govern them, and send one hundred of the most worthy men among them to remain with me as hostages." Acuphis laughed and answered, "I shall govern them with more ease, sir, if I send you so many of the worst, rather than the best of my subjects."The extent of King Taxiles's dominions in India was thought to be as large as Egypt, abounding in good pastures, and producing beautiful fruits. The king himself had the reputation of a wise man, and at his first interview with Alexander he spoke to him in these terms: "To what purpose," said he, "should we make war upon one another, if the design of your coming into these parts be not to rob us of our water or our necessary food, which are the only things that wise men are indispensably obliged to fight for? As for other riches and possessions, as they are accounted in the eye of the world, if I am better provided of them than you, I am ready to let you share with me;but if fortune has been more liberal to you than me, I have no objection to be obliged to you." This discourse pleased Alexander so much that, embracing him, "Do you think," said he to him, "your kind words and courteous behaviour will bring you off in this interview without a contest? No, you shall not escape so. I shall contend and do battle with you so far, that how obliging soever you are, you shall not have the better of me." Then receiving some presents from him, he returned him others of greater value, and to complete his bounty gave him in money ready coined one thousand talents; at which his old friends were much displeased, but it gained him the hearts of many of the barbarians. But the best soldiers of the Indians now entering into the pay of several of the cities, undertook to defend them, and did it so bravely, that they put Alexander to a great deal of trouble, till at last, after a capitulation, upon the surrender of the place, he fell upon them as they were marching away, and put them all to the sword. This one breach of his word remains as a blemish upon his achievements in war, which he otherwise had performed throughout with that justice and honour that became a king. Nor was he less incommoded by the Indian philosophers, who inveighed against those princes who joined his party, and solicited the free nations to oppose him. He took several of these also and caused them to be hanged.
Alexander, in his own letters, has given us an account of his war with Porus. He says the two armies were separated by the river Hydaspes, on whose opposite bank Porus continually kept his elephants in order of battle, with their heads towards their enemies, to guard the passage; that he, on the other hand, made every day a great noise and clamour in his camp, to dissipate the apprehensions of the barbarians; that one stormy dark night he passed the river, at a distance from the place where the enemy lay, into a little island, with part of his foot and the best of his horse.