Letters 95.48

Although a man hear what limit he should observe in sacrifice, and how far he should recoil from burdensome superstitions, he will never make sufficient progress until he has conceived a right idea of God,—regarding Him as one who possesses all things, and allots all things, and bestows them without price.

Seneca, Letters to Lucilius 95.48, translated by Richard Mott Gummere