"Then," said Dr. Faustus, "it were time enough for me if I amended." "True," said Mephistophiles, "if it were not for thy great sins, which are so odious and detestable in the sight of God, that it is too late for thee, for the wrath of God resteth upon thee." "Leave off," quoth Faustus, "and tell me my question to my greater comfort." CHAPTER XVII. HERE FOLLOWETH THE SECOND PART OF DR. FAUSTUS HIS LIFE AND PRACTICES, UNTIL HIS END. Dr. Faustus having received denial of his spirit to be resolved any more in such questions propounded, forgot all good works, and fell to be a calendar-maker by the help of his spirit, and also in short time to be a good astronomer or astrologian. He had learned so perfectly of his spirit the course of the sun, moon, and stars, that he had the most famous name of all the mathematicians that lived in his time, as may well appear by his works dedicated unto sundry dukes and lords, for he did nothing without the advice of his spirit, which learned him to presage of matters to come, which have come to pass since his death. The like praise won he with his calendars and almanack-making; for when he presaged of anything, operations, and alterations of the weather or elements, as wind, rain, fogs, snow, hail, moist, dry, warm, cold, thunder, lightning, it fell so duly out, as if an angel of heaven had forewarned it. He did not, like the unskilful astronomers in our time, that set in winter, cold moist air, frosty, and in the dog days, hot, dry, thunder, fire, and such like; but he set in all his works the day and hour, when, where, and how it should happen. If any wonderful things were at hand, as mortality, famine, plague, wars, he would set the time and place, in true and just order, when it would come to pass. CHAPTER XVIII. _A Question put forth by Dr. Faustus to his Spirit, concerning Astronomy._ Now Faustus falling to practice, and making his prognostications, he was doubtful in many points, wherefore he called unto him Mephistophiles his spirit, saying, "I find the ground of the science very difficult to attain unto; for when that I confer Astronomia and Astrologia, as the mathematicians and ancient writers have left in memory, I find them vary, and very much to disagree; wherefore I pray thee to teach me the truth of this matter."