Marcus Tullius Cicero (106BC – 43BC) was a Roman politician and philosopher.  His political career was successful but inconsistent, and led to his murder on the order of the Second Triumvirate (whose leaders included Mark Anthony).  As a philosopher, orator and writer his achievements were, retrospectively, considered immense.  His surviving letters, speeches and writings on rhetoric are some of the most detailed and informative primary sources we have from the period; the early Catholic Church deemed him wise and virtuous enough to be declared a ‘righteous pagan’, thus aiding the preservation of his work.