And here Dante describes an evidently spherical world... "The lamp of the world [the sun] rises to mortals through different passages; but through that which joins four circles with three crosses [the position of the rising sun at the vernal equinox] it issues with a better course and conjoined with better stars, and tempers and stamps the wax of the world more after its own fashion. Although such an outlet had made morning there and evening here, and all the hemisphere there was bright, and the other dark..."

You shall find out how salt is the taste of another man's bread, and how hard is the way up and down another man's stairs.

Because there is no man who can be true and just judge of himself, so much will self-love deceive him.

Through me the way into the suffering city, Through me the way to the eternal pain, Through me the way that runs among the lost. Justice urged on my high artificer; My maker was divine authority, The highest wisdom, and the primal love. Before me nothing but eternal things were made, And I endure eternally. Abandon every hope, ye who enter here.

As the geometer intently seeks to square the circle, but he cannot reach, through thought on thought, the principle he needs, so I searched that strange sight.

Be as a tower firmly set; Shakes not its top for any blast that blows.

My course is set for an uncharted sea.