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[[Image:Protagoras.gif|left|]]

[[Image:Protagoras.gif|left|]]

'''Protagoras''' (c. 490 - c. 420 BC) was a [[Presocratic Philosophy|Presocratic]] [[Greek]] [[philosopher]].  

'''Protagoras''' (c. 490 - c. 420 BC) was a [[Presocratic Philosophy|Presocratic]] [[Greek]] [[philosopher]]. According to Diogenes Laertius [[Protagoras]] studied with [[Democritus]].  

Diogenes Laertius' book "Lives of the Philosophers" is source for many early Greek philosophers including Protagoras; but this work was compiled over six hundred years after Protagoras' death and consequently not accurate. [[Plato]] also wrote about Protagoras, considering him a sophist; [[Aristotle]] regarded Protagoras as who first introduced a spiritual principle, as a sober man among the inebriated.   

Diogenes Laertius' book "Lives of the Philosophers" is source for many early Greek philosophers including Protagoras; but this work was compiled over six hundred years after Protagoras' death and consequently not accurate. [[Plato]] also wrote about Protagoras, considering him a sophist; [[Aristotle]] regarded Protagoras as who first introduced a spiritual principle, as a sober man among the inebriated.   

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He could be considered an [[Agnosticism|agnostic]] and relativist. He also was involved in the question of whether virtue could be taught or not.

Protagoras could be considered an [[Agnosticism|agnostic]] and relativist. He also was involved in the question of whether virtue could be taught or not. [[Pericles]] invited him to write the constitution of Thurii. 

::::::::::: ''"Man is the measure of all things".''

::::::::::: ''"Man is the measure of all things".''