"Sexto Empírico (en latín, Sextus Empiricus; ca. 160 - ca. 210), médico y filósofo griego, es uno de los más importantes representantes del escepticismo pirroniano y fuente de la mayoría de datos referentes a esta corriente filosófica."
"Sextus Empiricus (Greek: Σέξτος Ἐμπειρικός; c. 160 - c. 210 CE), was a physician and philosopher, and has been variously reported to have lived in Alexandria, Rome, or Athens. His philosophical work is the most complete surviving account of ancient Greek and Roman skepticism. In his medical work, tradition maintains that he belonged to the "empiric school", as reflected by his name. However, at least twice in his writings, Sextus seems to place himself closer to the "methodic school", which might be suggested by his philosophical views."