Of such foreign worships, and of the general neglect of the old cults, Cicero tells us nothing; we have to learn or to guess at these facts from evidence supplied by later writers. His interest in religious practice was confined to ceremonies which had some political importance. He was himself an augur, and was much pleased with his election to that ancient college; but, like most other augurs of the time, he knew nothing of augural “science,” and only cared to speculate philosophically on the question whether it is possible to foretell the future. He looked upon the right of the magistrate to “observe the heaven” as a part of an excellent constitution,[537] and could not forgive Caesar for refusing in 59 B.C. to have his legislation paralysed by the fanatical declarations of his colleague that he was going to “look for lightning.” He firmly believed in the value of the ius divinum of the State. In his treatise on the constitution (de Legibus) he devotes a whole book to this religious side of constitutional law, and gives a sketch of it in quasi-legal language from which it appears that he entirely accepted the duty of the State to keep the citizen in right relation to the gods, on whose good-will his welfare depended. He seems never to have noticed that the State was neglecting this duty, and that, as we saw just now, temples and cults were falling into decay, strange forms of religion pressing in. Such things did not interest him; in public life the State religion was to him a piece of the constitution,