Then an answer came from the top of the tree, “Raise your eyes; here I sit aloft in the Sack of Wisdom. In a short time have I learnt great things; compared with this all schools are a jest; in a very short time I shall have learnt everything, and shall descend wiser than all other men. I understand the stars, and the signs of the Zodiac, and the tracks of the winds, the sand of the sea, the healing of illness, and the virtues of all herbs, birds, and stones. If you were once within it you would feel what noble things issue forth from the Sack of Knowledge.”

The student, when he heard all this, was astonished, and said, “Blessed be the hour in which I have found thee! May not I also enter the sack for a while?”