The spirit is the true self, not that physical figure which can be pointed out by your finger.

The following passage is one of those cited by Copernicus himself in his preface to De Revolutionibus: "The Syracusan Hicetas, as Theophrastus asserts, holds the view that the heaven, sun, moon, stars, and in short all of the things on high are stationary, and that nothing in the world is in motion except the earth, which by revolving and twisting round its axis with extreme velocity produces all the same results as would be produced if the earth were stationary and the heaven in motion. . . ."

Religion is not removed by removing superstition.

Wisdom is not only to be acquired, but enjoyed.

There is wickedness in the intention of wickedness, even though it be not perpetrated in the act.

No obligation to do the impossible is binding.

The whole glory of virtue resides in activity.