The equivalent of this tribute was 170 thousand pounds sterling, and shows the underlying motive not only of the Persian invading armies, but also of all invading armies of antiquity. In the case of Alexander there is no exception.
According to history, the Persians were in occupation of Egypt, and Alexander having mustered superior forces, went there and drove them out and took possession himself. May I ask this question: was this a joke, or was there a motive? And if there was a motive, what else could it have been but that Alexander wanted the wealth in books, gold, silver, ivory, slaves, and tribute which the Persians were extorting from the unfortunate Egyptians?
In ancient times, the Oracle of Ammon at Siwah was the most celebrated, and Heliopolis, Memphis and Thebes were representatives of the best of Egyptian culture.
(John Kendrick's Ancient Egypt Book II P. 433-435; Diodorus 15, 16. Herodotus Book III P. 124; Diogenes Laertius Book VIII; Timaeus of Plato; Pliny N. H. XXXVI 9; Antiphon recorded by Porphyry).
Topics
Greek Philospohy is Stolen Egyptian Philosophy
The Memphite Theology is the Basis of all Important Doctrines of Greek Philosophy
Greek Philosophy was Alien to the Greeks
Greek Philosophy was the offspring of the Egyptian Mystery System
The Egyptians Educated the Greeks
The Curriculum of the Egyptian Mystery System
The Pre-Socratic Philosophers and the teaching Ascribed to them
The Athenian Philosophers
1. Socrates
2. Plato
3. Aristotle