Marcus Tullius Cicero, 106-43 BC, was a Roman philosopher, statesman, lawyer, political theorist, Roman constitutionalist and is widely considered one of Rome's greatest orators and prose stylists. He introduced the Romans to the chief schools of Greek philosophy and created a Latin philosophical vocabulary (with neologisms such as humanitas, qualitas, quantitas, and essential ) distinguishing himself as a linguist, translator, and philosopher. An impressive orator and successful lawyer, Cicero thought that his political career was his most important achievement. Today, he is appreciated primarily for his humanism and philosophical and political writings.