The final mystery is oneself. When one has weighed the sun in the balance, and measured the steps of the moon, and mapped out the seven heavens star by star, there still remains oneself. Who can calculate the orbit of his own soul?

He who reckons his own soul is successful; he who is heedless of it is unsuccessful.

When we make our own calculations, we need so many numbers and factors that any mistake is possible. The Lord's calculation boils down to love.

I walk alone in the darkness and wonder how a person would begin to determine the circumference of the earth. I have no idea. I’d probably just google it.

To rotate on its own axis is not the one movement for the human soul. There is also its wheeling round the Sun of an inexhaustible illumination.

The soul is too great to know itself, yet each individual portion of the soul seeks this knowledge, and in the seeking creates new possibilities of development, new dimensions of actuality. The individual self at any given moment can connect with its soul.

I can calculate the motion of heavenly bodies but not the madness of people.

The entire heaven, making its parts everywhere harmonize with him, is filled with spirits emanating out of the Sun. For this god is ruler of five orbits in the heavens, and whilst traversing three out of these orbits, he produces in three the Graces, themselves three in number, the remaining circles form the Scales to the Balance of supreme Necessity.

Self-knowledge reveals to the soul that its natural motion is not, if uninterrupted, in a straight line, but circular, as around some inner object, about a center, the point to which it owes its origin.

I measured the skies, now the shadows I measure. Sky-bound was the mind, Earth-bound the body rests.

I can calculate the motions of the heavenly bodies, but not the madness of the people.

I used to measure the heavens, now I measure the shadows of Earth. Although my mind was heaven-bound, the shadow of my body lies here.

Before you measure the years, you measure the days. And before the days, you measure the moon.

Even the heavens are open to the mind of Man. Man alone of all the animals has traced the pathways of the rising and the setting of the stars. Man has measured out the days and months and years. Man alone has understood and can predict the eclipses of the sun and moon for all future time, when they will occur, and whether they will be partial or total. When the mind contemplates these phenomena, it learns also knowledge of the gods. So religion is born, and with it goodness and all the virtues which make up the good life, a life which reflects the divine life. We need to be inferior to the gods in nothing except our mortality, which need in no way hinder us from living well. In explaining these things, I think that I have shown clearly enough how much superior is human nature to that of all the other animals. From which we must infer that such a shape and arrangement of our limbs and such a power of intelligence cannot have been the work of chance alone.