As soon as the Greek states had all been brought to a proper state of obedience, Alexander prepared to conquer Persia, although he had a force of only 34,500 men. These men were very well trained, however, and promised to be more powerful on the battlefield than the million warriors of Xerxes.

In his joy at departing, Alexander made rich presents to everybody, until one of his advisers modestly reminded him that his treasure was not boundless, and asked him what he would have left when he had given away all he owned. “My hopes!” answered Alexander proudly, for he expected to conquer not only Persia and Asia Minor, but all the known world.