 [S]ince [the modalities of our soul] are finite, we cannot find the infinite there, since nothingness is not visible, and one cannot perceive in the soul what is not there. Similarly, from the fact that I perceive in a circle an infinity of equal diameters, or rather, from the fact that there are equal diameters therein in repraesentando, I must concede that they are really there in essendo. For, in effect, a circle contains the reality of an infinity of diameters. In order, then for a reality to be present to the mind, for it to affect the mind, for the mind to perceive or receive it, it necessarily must really be there. (OC 9:954)