XXXVIII. Tachos, deserted by the mercenaries, now fled for his life; but another claimant of the throne arose in the district of Mendes, and made war against Nektanebis with an army of one hundred thousand men. Nektanebis, in his talk with Agesilaus, spoke very confidently about this force, saying that they were indeed very numerous, but a mere mixed multitude of rustic recruits, whom he could afford to despise. To these remarks Agesilaus answered, "It is not their numbers, but their ignorance which I fear, lest we should be unable to deceive them. Stratagems in war consist in unexpectedly falling upon men who are expecting an attack from some other quarter, but a man who expects nothing gives his enemy no opportunity to take him unawares, just as in wrestling one cannot throw one's adversary if he stands still."

The Mendesian soon began to intrigue with Agesilaus, and Nektanebis feared much that he might succeed in detaching him from himself. Consequently, when Agesilaus advised him to fight as soon as possible, and not prolong the war against men who were indeed inexperienced in battle, but who were able, from their enormous numbers, to raise vast entrenchments and surround him on every side, he took the exactly opposite course, and retired to a strongly fortified city, of great extent, viewing Agesilaus with suspicion and fear. Agesilaus was grieved at this, but, feeling ashamed to change sides a second time and so completely fail in his mission, he followed Nektanebis into his fortress.

Plutarch's Lives Volume III — Part 140

XXXIX. When the enemy advanced and began to build a wall round the city, Nektanebis, fearing the consequences of a siege, was eager to fight, as were also the Greeks, for they were very short of provisions. Agesilaus, however, opposed this design, for which he was heartily abused by the Egyptians, who called him a traitor and the betrayer of their king. He paid but little attention to their slanders, but watched for an opportunity to effect the project which he had conceived. This was as follows:--The enemy were digging a trench round the city, with the intention of completely isolating the garrison and starving it out. When then the two ends of this trench, which was to surround the city, had nearly met, Agesilaus towards evening ordered the Greeks to get under arms, and, proceeding to Nektanebis, said, "Young man, this is our opportunity. I would not say anything about it before, lest the secret should be divulged. But now the enemy themselves have secured our position by digging this enormous trench; for the part of it which is completed will keep off their superior numbers from us, while upon the ground which still remains unbroken we can fight them on equal terms. Come now, prove yourself a man of courage, charge bravely with us, and save both yourself and your army. Those of the enemy whom we first attack will not be able to resist our onset, and the rest will not be able to reach us because of the trench."

Plutarch's Lives Volume III — Part 140