In every science certain things must be accepted as first principles if the subject matter is to be understood; and these first postulates rest upon faith.

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.

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.

God says to man: 'Be thou thyself, and I shall be thine.'

Otherness cannot be a form. For to alter is to deform rather than to form. Therefore, that which is seen in different things can also be seen in and of itself without otherness, since otherness did not give being to it.

A line partakes of the simplicity of a point more than does a surface; and a surface [partakes thereof more] than does a material object-as was evident. From this consideration of a point and a material object elevate yourself unto a likeness of True Being and of the universe; and by means of [this] quite clear symbolism [of a point] make a conjecture about what has been said.

Within itself the soul sees all things more truly than as they exist in different things outside itself. And the more it goes out unto other things in order to know them, the more it enters into itself in order to know itself.