choose two pre-socratic philosophers in the list below and discuss the similarities and differences between two.
Thales of Miletus
Anaximander of Miletus
Anaximenes of Miletus
Xenophanes of Colophon
Heraclites of Ephesus
Anaxagoras of Clazomenae
Pythagoras of Samos
Empedocles of Akragras
Diogenes of Apollonia