An external thing that is knowable [is knowable] by means of something internal that is consubstantial [with the rational soul].

Number, in consequence, includes all things that are capable of comparison. It is not then in quantity only that number produces proportion; it produces it in all things that are capable of agreement and differences in any way at all, whether substantially or accidentally.

Time is to eternity as an image is to its exemplar, and those things which are temporal bear a resemblance to those things which are eternal.

For reason's measurements, which attain unto temporal things, do not attain unto things that are free from time-just as hearing does not attain unto whatever is not-audible, even though these things exist and are unattainable by hearing.

All things are in the intended endpoint, and this mode of being is called will or desire.

We see that God has implanted in all things a natural desire to exist with the fullest measure of existence that is compatible with their particular nature. To this end they are endowed with suitable faculties and activities; and by means of these there is in them a discernment that is natural and in keeping with the purpose of their knowledge, which ensures their natural inclination serving its purpose and being able to reach its fulfilment in that object towards which it is attracted by the weight of its own nature.

With the senses man measures perceptible things, with the intellect he measures intelligible things, and he attains unto supra-intelligible things transcendently.