Greece was not only famous for its mathematics, but also botony, optics, war strategy, philosophy, astromomy. To claim all of Greek literature is a copy is just dumb. Philosophical governmental systems developed by the Greeks are still in use today. The first written account of history itself named after Hirodotus is greek in origin.
Most of all Greeks gave us Philosophical skepticism. something which I believe influenced the Renaissance. It was also the Greeks who drew the first world maps.
The Egyptians never developed a language that was easily written. Hieroglyphics lack abstract words present in the greek language, and are more ceremonial in their application. A very primitive writing system.
The Greeks were the first ones to have translated Egyptian Hieroglyphics, so all the credit of what you say goes to the Egyptians who were an amalgam of local cultures with influences on and from Mesopotamia and the Indus valley civilisations, this goes far before even the existence of the the term Arab (from phoenix Arabia and desert Arabia covering Egypt and beyond) or Greek as a matter of fact.
Indeed, it is an early version of Google Translation:
For nearly 1,500 years, no one could read hieroglyphs, the ancient Egyptian picture-writing. The French scholar Jean-Francois Champollion spent most of his life trying to break the code. He made his first breakthrough in 1822, while studying the Roseta Stone, and soon experts were able to read the inscriptions that cover many Egyptian artefacts.
The stone is a slab of black basalt, found near Rosetta in the delta.
Inscribed in 196 B.C., the Rosetta Stone was unearthed again in 1799. The text is repeated in hieroglyphs, demotic and Greek. Champollion could read Greek, and so he used this text to translate the other two scripts.
The text is a message of thanks to Pharaoh Ptolemy V.
Jean-Francois Champollion (1790-1832), is a
brilliant linguist who had mastered 12 languages by age 16. The first hieroglyphs he deciphered were pharaoh's names. By 1824, he had translated most of the symbols and begun to unravel
Egyptian grammar.
ROSETTA STONE