Thales and Anaximander

There is considerable agreement that Thales was born in Miletus in Greek Ionia in the 624 BCE and died in about 546 BCE. His parents are said by some to be from Miletus but others report that they were Phoenicians. It is reported that Thales predicted an eclipse of the Sun in 585 BC. .. Thales was much involved in the problems of astronomy and provided a number of explanations of cosmological events which traditionally involved supernatural entities. Thales's …

…it would be limited by something, its source. In other words, if it were derived from a source, the apeiron would owe its existence to something else and so would be limited or conditioned by that thing. The apeiron is unlimited or infinite because it is unconditioned; thus not only does it not come into being but it also does not perish, for if it did it would be conditioned by that which destroys it.