To all of you ignorant people, open some history books! (That is of course if you care to know...) :
Alexander I of Macedon, king of Macedon from 498 BCE to 454 BCE:
“Tell your king (Xerxes), who sent you, how his Greek viceroy of Macedonia has received you hospitably.” (Herodotus, “Histories”, 5.20.4, Loeb)
“Men of Athens... In truth I would not tell it to you if I did not care so much for all Greece; I myself am by ancient descent a Greek, and I would not willingly see Greece change her freedom for slavery. I tell you, then, that Mardonius and his army cannot get omens to his liking from the sacrifices. Otherwise you would have fought long before this. Now, however, it is his purpose to pay no heed to the sacrifices, and to attack at the first glimmer of dawn, for he fears, as I surmise that your numbers will become still greater. Therefore, I urge you to prepare, and if (as may be) Mardonius should delay and not attack, wait patiently where you are; for he has but a few days' provisions left. If, however, this war ends as you wish, then must you take thought how to save me too from slavery, who have done so desperate a deed as this for the sake of Greece in my desire to declare to you Mardonius' intent so that the barbarians may not attack you suddenly before you yet expect them. I who speak am Alexander the Macedonian.” (From the speech of Alexander I of Macedon when he was admitted to the Olympic games, Herodotus, "Histories", 9.45)
Alexander the Great, king of Macedon, 356 BCE - 323 BCE:
“Your ancestors came to Macedonia and the rest of Greece and did us great harm, though we had done them no prior injury. I have been appointed leader of the Greeks, and wanting to punish the Persians I have come to Asia, which I took from you... (Alexander's letter to Persian king Darius in response to a truce plea, as quoted in "Anabasis Alexandri" by Roman historian Arrian, Book II, 14, 4)
“Holy shadows of the dead, I’m not to blame for your cruel and bitter fate, but the accursed rivalry which brought sister nations and brother people, to fight one another. I do not feel happy for this victory of mine. On the contrary, I would be glad, brothers, if I had all of you standing here next to me, since we are united by the same language, the same blood and the same visions.” (Addressing the dead Greeks of the Battle of Chaeronea, as quoted in “Historiae Alexandri Magni” by Roman historian Quintus Curtius Rufus.)
“If it were not my purpose to combine foreign things with things Greek, to traverse and civilize every continent, to search out the uttermost parts of land and sea, to push the bounds of Macedonia to the farthest Ocean, and to disseminate and shower the blessings of Greek justice and peace over every nation, I should not be content to sit quietly in the luxury of idle power, but I should emulate the frugality of Diogenes. But as things are, forgive me, Diogenes, that I imitate Heracles, and emulate Perseus, bands follow in the footsteps of Dionysus, the divine author and progenitor of my family, and desire that victorious Greeks should dance again in India and revive the memory of the Bacchic revels among the savage mountain tribes beyond the Caucasus.” (Plutarch, "Moralia: On the Fortune of Alexander", I, 332a-b, Loeb)
“Youths of the Pellaians and of the Macedonians and of the Greek Amphictiony and of the Lakedaimonians and of the Corinthians… and of all the Greek peoples, join your fellow-soldiers and entrust yourselves to me, so that we can move against the barbarians and liberate ourselves from the Persian bondage, for as Greeks we should not be slaves to barbarians. (Pseudo-Kallisthenes, “Historia Alexandri Magni”, 1.15.1-4)
“Now you fear punishment and beg for your lives, so I will let you free, if not for any other reason so that you can see the difference between a Greek king and a barbarian tyrant, so do not expect to suffer any harm from me. A king does not kill messengers.” (Pseudo-Kallisthenes, “Historia Alexandri Magni”, 1.37.9-13)
“They will be fighting for pay… we, on the contrary, shall fight for Greece, and our hearts will be in it.” (Addressing his troops prior to the Battle of Issus, as quoted in “Anabasis Alexandri” by Roman historian Arrian, Book II, 7)
Philip V, King of Macedon, 221 BC - 179 BC:
“For on many occasions when I and the other Greeks sent embassies to you begging you to remove from your statutes the law empowering you to get booty from booty, you replied that you would rather remove Aetolia from Aetolia than that law” (Polybius, “The Histories”, 18.4.8)
Aeschines, Greek statesman and one of the ten Attic orators, 389–314 BCE:
“For at a congress of the Lacedaemonian allies and the other Greeks, in which Amyntas, the father of Philip, being entitled to a seat, was represented by a delegate whose vote was absolutely under his control, he joined the other Greeks in voting to help Athens to recover possession of Amphipolis. As proof of this I presented from the public records the resolution of the Greek congress and the names of those who voted.” ("On the Embassy", 32)
Diodorus Siculus, Greek historian, born at Agyrium in Sicily, c. 90 BC– c. 30 BCE:
“Such was the end of Philip (II, king of Macedonia) ...He had ruled 24 years. He is known to fame as one who with but the slenderest resources to support his claim to a throne won for himself the greatest empire among the Greeks, while the growth of his position was not due so much to his prowess in arms as to his adroitness and cordiality in diplomacy”. ("Histories", 16.95.1-2)
Gaius Julius Caesar, Roman military and political leader, 100 or 102 BCE – 44 BCE:
“Caesar judged that he must drop everything else and pursue Pompey where he had betaken himself after his flight, so that he should not be able to gather more forces and renew, and he advanced daily as far as he could go with the cavalry and ordered a legion to follow shorter stages. An edict had been published in Pompey's name that all the younger men in the province (Macedonia), both Greeks and Roman citizens, should assemble to take an oath.” ("Civil War", 111.102.3)
Flavius Josephus, Jewish historian, 1st-century CE:
“And when the book of Daniel was showed to him (Alexander the Great) wherein Daniel declared that one of the Greeks should destroy the empire of the Persians, he supposed that himself was the person intended.” ("Antiquities of the Jews", Book 11.8.5)
Herodotus, Greek historian, 484 BC-ca. 425 BCE:
“Now that these descendants of Perdiccas (Perdiccas I of Macedon, king of Macedonia from about 700 BCE to about 678 BCE) are Greeks, as they themselves say, I myself chance to know and will prove it in the later part of my history.” ("Histories", 5.22.1)
“Alexander (I of Macedon), however, proving himself to be an Argive, was judged to be a Greek. He accordingly competed in the furlong race and tied step for first place.” ("Histories", 5.22.2)
“From Argos (in Peloponnesus, Greece) fled to the Illyrians three brothers of the descendants of Temenus, Gauanes, Aeropus, and Perdiccas; and passing over from the Illyrians into the upper parts of Macedonia they came to the city of Lebaia.” (“Histories”, 8.137-139)
Isocrates, Greek rhetorician and one of the ten Attic orators, 436–338 BCE:
“Therefore, since the others are so lacking in spirit, I think it is opportune for you to head the war against the King; and, while it is only natural for the other descendants of Heracles, and for men who are under the bonds of their polities and laws, to cleave fondly to that state in which they happen to dwell, it is your privilege, as one who has been blessed with untrammelled freedom, to consider all Greece your fatherland, as did the founder of your race, and to be as ready to brave perils for her sake as for the things about which you are personally most concerned.” ("To Philip", 5.127, Loeb)
Titus Livius, known as Livy in English, Roman historian, 59 BCE – CE 17:
“The Aitolians, the Akarnanians, the Macedonians, men of the same speech, are united or disunited by trivial causes that arise from time to time; with aliens, with barbarians, all Greeks wage and will wage eternal war; for they are enemies by the will of nature, which is eternal, and not from reasons that change from day to day...” ("History of Rome", Book XXXI, 29.15)
Lucius Flavius Arrianus 'Xenophon', known in English as Arrian, Roman historian and philosopher, 92-175 CE:
“To Athens also he sent 300 suits of Persian armour to be hung up in the Acropolis as a votive offering to Athena, and ordered this inscription to be fixed over them, "Alexander, son of Philip and all the Greeks except the Lacedaemonians, present this offering from the spoils taken from the foreigners inhabiting Asia”. ("Anabasis Alexandri", I, 16, 7)
Mestrius Plutarchus, better known in English as Plutarch, Greek historian, 46 -127 CE:
“Yet through Alexander (the Great) Bactria and the Caucasus learned to revere the gods of the Greeks... Alexander established more than seventy cities among savage tribes, and sowed all Asia with Greek magistracies ... Egypt would not have its Alexandria, nor Mesopotamia its Seleucia, nor Sogdiana its Prophthasia, nor India its Bucephalia, nor the Caucasus a Greek city, for by the founding of cities in these places savagery was extinguished and the worse element, gaining familiarity with the better, changed under its influence.” ("Moralia: On the Fortune of Alexander", I, 328d, 329a Loeb)
“And it is said that when he took his seat for the first time under the golden canopy on the royal throne, Demaratus the Corinthian, a well-meaning man and a friend of Alexander's, as he had been of Alexander's father, burst into tears, as old men will, and declared that those Greeks were deprived of great pleasure who had died before seeing Alexander seated on the throne of Dareius.” ("Parallel Lives: Alexander", 37.7)
Polybius, Greek historian, 203–120 BCE:
“In the presence of Zeus, Hera, and Apollo: in the presence of the Genius of Carthage, of Heracles, and Iolaus: in the presence of Ares, Triton, and Poseidon: in the presence of the gods who battle for us and the Sun, Moon, and Earth; in the presence of Rivers, Lakes, and Waters: in the presence of all the gods who possess Macedonia and the rest of Greece: in the presence of all the gods of the army who preside over this oath.” ("Histories", VII, 9.2-3, Loeb)
“How highly should we honour the Macedonians, who for the greater part of their lives never cease from fighting with the barbarians for the sake of the security of Greece? For who is not aware that Greece would have constantly stood in the greater danger, had we not been fenced by the Macedonians and the honourable ambition of their kings?” ("Histories", IX, 35.2, Loeb)
“Surely it would have been much more dignified and fairer to include Philip's achievements in the history of Greece than to include the history of Greece in that of Philip.” (Statement on Theopompus, "Histories", VIII, 11.4, Loeb)
Quintus Curtius Rufus, Roman historian, 1st century CE:
“Alexander called a meeting of his generals the next day. He told them that no city was more hateful to the Greeks than Persepolis, the capital of the old kings of Persia; the city from which troops without number had poured forth, from which first Darius and then Xerxes had waged an unholy war on Europe. To appease the spirits of their forefathers they should wipe it out, he said.” (Alexander the Great Speaking to his own Macedonian Commanders, “Historiae Alexandri Magni”, 5.6.1)
Strabo, Greek historian, geographer and philosopher, 64 BCE – 24 CE:
“There remain of Europe, first, Macedonia and the part of Thrace that are contiguous to it and extend as far as Byzantium; secondly, Greece; and thirdly, the Islands that are close by. Macedonia, of course, is a part of Greece, yet now, since I am following the nature and shape of the place geographically, I have decided to classify it apart from the rest of Greece and to join it with that part of Thrace...” ("Geography", VII, Frg. 9, Loeb)
“Three classes inhabited the city (Alexandria in Egypt): first the Egyptian or native stock of people, who were quick-tempered and not inclined to civil life; and secondly the mercenary class, who were severe and numerous and intractable...; and, third, the tribe of the Alexandrians, who also were not distinctly inclined to civil life, and for the same reasons, but still they were better than those others, for even though they were a mixed people, still they were Greeks by origin and mindful of the customs common to the Greeks.” ("Geography", 17.1.12-13)