Plato defined man thus: “Man is a two-legged animal without feathers;” and was much praised for the definition; so Diogenes plucked a cock and brought it into his school, and said, “This is Plato's man.” On which account this addition was made to the definition, “With broad flat nails.”

Then shall happen what seems great tidings: the Wolf shall swallow the sun; and this shall seem to men a great harm. Then the other wolf shall seize the moon, and he also shall work great ruin; the stars shall vanish from the heavens. Then shall come to pass these tidings also: all the earth shall tremble so, and the crags, that trees shall be torn up from the earth, and the crags fall to ruin; and all fetters and bonds shall be broken and rent. Then shall Fenris-Wolf get loose; then the sea shall gush forth upon the land, because the Midgard Serpent stirs in giant wrath and advances up onto the land. Then that too shall happen, that Naglfar shall be loosened, the ship which is so named. (It is made of dead men's nails; wherefore a warning is desirable, that if a man die with unshorn nails, that man adds much material to the ship Naglfar, which gods and men were fain to have finished late.) Yet in this sea-flood Naglfar shall float. Hrymr is the name of the giant who steers Naglfar. Fenris-Wolf shall advance with gaping mouth, and his lower jaw shall be against the earth, but the upper against heaven,—he would gape yet more if there were room for it; fires blaze from his eyes and nostrils.