The greatest gift that God in His bounty made in creation, and the most conformable to His goodness, and that which He prizes the most, was the freedom of will, with which the creatures with intelligence, they all and they alone, were and are endowed.
Be like a solid tower whose brave height remains unmoved by all the winds that blow; the man who lets his thoughts be turned aside by one thing or another, will lose sight of his true goal, his mind sapped of its strength.
Open your mind to what I shall disclose, and hold it fast within you; he who hears, but does not hold what he has heard, learns nothing. Beatrice - Canto V 40-42
So that the Universe felt love, by which, as somebelieve, the world has many times been turned to chaos. And at that moment this ancient rock, here and elsewhere, fell broken into pieces.
O you, who in some pretty boat, Eager to listen, have been following Behind my ship, that singing sails along Turn back to look again upon your own shores; Tempt not the deep, lest unawares, In losing me, you yourselves might be lost. The sea I sail has never yet been passed; Minerva breathes, and pilots me Apollo, And Muses nine point out to me the Bears. You other few who have neck uplifted Betimes to the bread of angels upon Which one lives and does not grow sated, Well may you launch your vessel Upon the deep sea.