SOURCE: "An Epistle to the Student in Astrology," in An Introduction to Astrology, G. Bell and Sons, Ltd., 1923, pp. 10-12.

In the following excerpt, first published in 1647, Lilly defines some appropriate considerations for the disciple of astrology.

My Friend, whoever thou art, that with so much ease shalt receive the benefit of my hard studies, and doest intend to proceed in this heavenly knowledge of the starres; In the first place, consider and admire thy Creator, be thankfull unto him, and be humble, and let no naturall knowledge, how profound or transcendant soever it be, elate thy mind to neglect that Divine Providence, by whose al-seeing order and appointment all things heavenly and earthly have their constant motion: the more thy knowledge is enlarged, the more doe thou magnify the power and wisdome of Almighty God: strive to preserve thyself in his favour; for the more holy thou...