When he grew up, there appeared a perfect symmetry in his members, his joints were strong and firm; and being but of a middle stature, he was really stronger than he appeared to be. His skin was white, only his cheeks and his breast were dyed with an agreeable red; his hair was yellow, and went into a gentle curl; his nose was aquiline, and his eyes of different colours: for his left eye is said to have been blue, and his right very black. There was a certain secret virtue in them; insomuch that nobody could look on his countenance without veneration and fear. He could run with wonderful swiftness, which he often practised, even when he was king, as esteeming it of great use in expeditions; and he was often seen to run for a prize with the swiftest persons about him. He bore fatigue with a patience and firmness that even passes belief; and by this one virtue he oftentimes saved both himself and his armies in the greatest extremities. By frequent exercises, and a very warm constitution, he did so purge off any bad humours which commonly lodge under the skin, that not only his breath, but also what he perspired through the pores of his body were sweet, and his very clothes had a fragrant smell; and this was the cause, as some think, why he was so much inclined to wine and passion. Pictures and statues of him are yet to be seen, which were the performances of the best artists. For lest the comeliness of his face should suffer any thing from the unskilfulness of vulgar sculptors or painters, he strictly forbade any to draw his picture without his order, and threatened to punish any one that should disobey it. In consequence whereof, though there was abundance of good workmen, yet Apelles was the only person who had his consent to draw his picture; Pyrgoteles to grave him on precious stones, and Lysippus and Polyclitus to represent him in medals.
His governor Leonidas is said to have walked too fast, which Alexander learnt of him; and never was able to help it afterwards by all his endeavours. I am not ignorant that very much is owing to education, but I am inclined to impute this rather to the temper of that young prince, than to his accustoming himself to it; for it was impossible for one of his ardour and impetuosity of spirit, not to have the motions of his body answerable to it. And this hastiness of his was so far from being accounted an imperfection by his successors, that they studiously affected it, and imitated him therein; as they did in his wry neck, which leaned to his left shoulder, in his piercing look and high voice, being incapable to copy the virtues of his mind. In reality, there were many of them whose long lives had scarce anything in them that deserved to be compared to his childhood. Nor did he ever say or act anything that was mean or base, but all his words and actions were equal to, or even surpassed, his fortune. For though he was most ambitious of praise, yet he did not affect to draw it indifferently from every thing, but would have it arise from things that were most praiseworthy; being sensible that the praise which arises from mean actions is inglorious and dishonourable, and that that victory which is gained over the meanest enemy, is so much the more noble and illustrious. Therefore when some persons told him, “that seeing he was an excellent runner, he ought to list himself among those who were to contend for the prize at the Olympic games, after the example of a king of his name; and that thereby he should acquire a great fame all over Greece”: he answered, “I would certainly do so, if I were to run against kings.”