"A Labyrinth doth need a clew to find The passage out, and a Daedalian mind May doe strange works, beyond the Vulgar's reach, And in their understandings make a breach. It's often seene, when men of pregnant parts Study, Invent, and promulgate rare Arts, Or unknown secrets, now they puzzle those That understand them not; their Yea's, their No's, Are put to Non-plus; Tutors then they lack To drive them forward, or to bring them back. How many learned men (in former ages) In all the sciences were counted Sages? And yet are scarcely understood by men, Who daily read them o're and o're again! Some can recount things past, and present some, And some would know of things that are to come. Some study pleasure, some would faine live long; Some that are old, would faine again be young. This Man doth toyle, and moile, to purchase wealth, That man gets sickness studying for his health; This man would happy bee, that Wisdom have; All are at loss, and every man doth crave; None is content, But each man wants a Guide Them to direct when they do step aside. Since this is thus, Our Author hath took paine To lead us in, and bring us out again; Now who is pleas'd in him for to confide In these Discoveries, Here's his Holy Guide. Pray what can more improve the Commonwealth, Than the discovery of the way to Health? The Paradox is made a certain truth, An Ancient man may dye it 'h prime of 's youth. What wonder is it if he goe aside The Path, which will not take the Holy Guide! JOHN BOOKER." "To his Ingenuous Friend Mr. John Heydon, on his Book Intituled The Holy Guide."