“You are doing an excellent thing, one which will be wholesome for you, if, as you write me, you are persisting in your effort to attain sound understanding; it is foolish to pray for this when you can acquire it from yourself. We do not need to uplift our hands towards heaven, or to beg the keeper of a temple to let us approach his idol's ear, as if in this way our prayers were more likely to be heard. A god is near you, with you, and in you. This is what I mean, Lucilius: there sits a holy spirit within us, one who marks our good and bad deeds, and is our a guardian.”
Facis rem optimam et tibi salutarem, si, ut scribis, perseveras ire ad bonam mentem, quam stultum est optare, cum possis a te impetrare. Non sunt ad caelum elevandae inarms nee exorandus aedituus, ut nos ad aurem simulacri, quasi magis exaudiri possimus, admittat; Prope est a te deus, tecum est, intus est. Ita dico, Lucili: sacer intra nos spiritus sedet, malorum bonorumque nostrorum observator et custos...
Epistulae Morales ad Lucilium (Moral Letters to Lucilius), Letter XLI: On the god within us
