Carneades (214/3 - 129/8 BC) was Greek philosopher who headed the New Academy at Athens when anti-dogmatic skepticism reached its greatest strength. As head of the Academy, he was one of three philosophers sent to Rome in 155 BC where his lectures on the uncertainty of justice caused consternation among the leading politicians. He he delivered two public orations, in which he argued in favor of justice in one speech and argued against it in the other. This arguing on both sides of a question expressed his attitude of suspending judgment, an attitude characteristic of academic, or anti-dogmatic, skepticism. In this spirit, he criticized both Epicurean and stoic beliefs as inconclusive. Many of his arguments on this point later attained classic status. Though he left no writings, his teachings were preserved by Cleitomachus. Engraving from "The History of Philosophy" by Thomas Stanley published in three successive volumes between 1655 and 1661.