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| | Thales |
 | | Thales of Miletus, the acknowledged founder of Greek mathematics and philosophy, was also an astronomer, and is the first known Greek scientist. |
 | | Plutarch said "Thales apparently, was the only one of these whose wisdom stepped, in speculation, beyond the limits of practical utility: the rest acquired the name of wisdom in politics." Thales believed water was the origin of all things and that the earth was a flat disc, simply floating on water. |
 | | Plato told of Thales falling into a well while gazing at the stars, and that a Thracian slave-girl laughed at him, saying "he wanted to know what happens in the heavens but he did not want to see what was in front of his own feet". |
| www.math.sfu.ca /histmath/Europe/Euclid300BC/thales.html (570 words) |
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