A given circle cannot be so true that a truer one cannot be found; and the movement of a sphere at one moment is never precisely equal to its movement at another, nor does it ever describe two circles similar and equal, even if from appearances the opposite may seem true.

All we know of the truth is that the absolute truth, such as it is, is beyond our reach.

For when we say that what is different is different, we affirm that what is different is the same as itself. For what is different can be different only through the Absolute Same, through which all that is is both the same as itself and other than another.

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

In humility alone lies true greatness, and knowledge and wisdom are profitable only in so far as our lives are governed by them.

But if you search further, you find in yourself nothing similar to God, but rather you affirm that God stands above all this as cause, origin, and the light of life of your intellective soul.

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.