Cyril Bailey, The Religion of Ancient Rome
“ So far we have been considering the regular relations of man and god, seen in recurring or special offerings, in vows and in acts of purification and lustration—all based on the contract-notion, all endeavours on man's part to fulfil his bounden duty, that the gods may be constrained in turn to theirs. But so strong was the feeling of divine presence and influence in the Roman's mind, that he was not content with doing his best by these regular means to secure the favour of the gods, but wished before undertaking any business of importance to be able to assure himself of their approval. ”
