In this voyage he took ten of the Indian philosophers prisoners who had been most active in persuading Sabbas to revolt, and had caused the Macedonians a great deal of trouble. These men, called Gymnosophists, were reputed to be extremely ready and succinct in their answers, which he made trial of, by putting difficult questions to them, letting them know that those whose answers were not pertinent should be put to death, on which he made the eldest of them judge. The first being asked which he thought the most numerous, the dead or the living, answered, "The living because those who are dead are not at all." Of the second, he desired to know whether the earth or the sea produced the largest beasts; who told him, "The earth, for the sea is but a part of it." His question to the third was, Which is the cunningest of beasts? "That," said he, "which men have not yet found out." He bade the fourth tell him what argument he used to Sabbas to persuade him to revolt. "No other,"said he, "than that he should either live or die nobly." Of the fifth he asked, Which was the eldest, night or day? The philosopher replied, "Day was eldest, by one day at least." But perceiving Alexander not well satisfied with that account, he added, that he ought not to wonder if strange questions had as strange answers made to them. Then he went on and inquired of the next, what a man should do to be exceedingly beloved. "He must be very powerful," said he, "without ****** himself too much feared." The answer of the seventh to his question, how a man might become a god, was, "By doing that which was impossible for men to do." The eighth told him, "Life is stronger than death, because it supports so many miseries." And the last being asked, how long he thought it decent for a man to live, said, "Till death appeared more desirable than life." Then Alexander turned to him whom he had made judge, and commanded him to give sentence. "All that I can determine," said he, "is, that they have every one answered worse than another." "Nay," said the king, "then you shall die first, for giving such a sentence." "Not so, O king,"replied the gymnosophist, "unless you said falsely that he should die first who made the worst answer." In conclusion he gave them presents and dismissed them.
But to those who were in greatest reputation among them, and lived a private quiet life, he sent Onesicritus, one of Diogenes the Cynic's disciples, desiring them to come to him. Calanus, it is said, very arrogantly and roughly commanded him to strip himself and hear what he said naked, otherwise he would not speak a word to him, though he came from Jupiter himself. But Dandamis received him with more civility, and hearing him discourse of Socrates, Pythagoras, and Diogenes, told him he thought them men of great parts and to have erred in nothing so much as in having too great respect for the laws and customs of their country. Others say Dandamis only asked him the reason why Alexander undertook so long a journey to come into those parts. Taxiles, however, persuaded Calanus to wait upon Alexander. His proper name was Sphines, but because he was wont to say Cale, which in the Indian tongue is a form of salutation to those he met with anywhere, the Greeks called him Calanus. He is said to have shown Alexander an instructive emblem of government, which was this. He threw a dry shrivelled bide upon the ground, and trod upon the edges of it. The skin when it was pressed in one place still rose up in another, wheresoever he trod round about it, till he set his foot in the middle, which made all the parts lie even and quiet. The meaning of this similitude being that he ought to reside most in the middle of his empire, and not spend too much time on the borders of it.
His voyage down the rivers took up seven months' time, and when he came to the sea, he sailed to an island which he himself called Scillustis, others Psiltucis, where going ashore, he sacrificed, and made what observations he could as to the nature of the sea and the sea-coast. Then having besought the gods that no other man might ever go beyond the bounds of this expedition, he ordered his fleet, of which he made Nearchus admiral and Onesicritus pilot, to sail round about, keeping the Indian shore on the right hand, and returned himself by land through the country of the Orites, where he was reduced to great straits for want of provisions, and lost a vast number of his men, so that of an army of one hundred and twenty thousand foot and fifteen thousand horse, he scarcely brought back above a fourth part out of India, they were so diminished by disease, ill diet, and the scorching heats, but most by famine. For their march was through an uncultivated country whose inhabitants fared hardly, possessing only a few sheep, and those of a wretched kind, whose flesh was rank and unsavoury, by their continual feeding upon sea-fish.