Quintus Junius Rusticus (100 - 170 AD), probably a grandson of Arulenus Rusticus, was one of the teachers of the emperor Marcus Aurelius, and the most distinguished Stoic philosophers of his time. Marcus treated him with utmost respect and honor. In his Meditations, Marcus thanks Rusticus for the Stoic training he received from him: From Rusticus I received the impression that my character required improvement and discipline; and from him I learned not to be led astray to sophistic emulation, nor to writing on speculative matters, nor to delivering little hortatory orations, nor to showing myself off as a man who practices much discipline, or does benevolent acts in order to make a display. Rusticus held the political positions of Suffect consul in 133 and Consul ordinarius in 162. He served as urban prefect of Rome between 162 and 168. He presided over the trial of the Christian theologian Justin Martyr, which ended with Justin's conviction and execution. Engraving by J.W. Cook, 1825.