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Instruct the planets in what orbs to run,
VER. 21. Ed. 4th and 5th.
Show by what rules the wand'ring planets stray,
ans, to measure a degree at. Chronology, which he rethe equator and the polar formed on those two subcircle, in order to deter- lime conceptions, the diffemine the true figure of the rence between the reigns of earth; of great importance kings, and the generations to Astronomy and Naviga- of men ; and the position tion.
of the colures of the equiVER. 22.
Correct old noxes and solstices at the Time,] This alludes to Sir time of the Argonautic exIsaac Newton's Grecian pedition.
Superior beings, when of late they saw
Could he, whose rules the rapid Comet bind, 35
Could he, who taught each Planet where to roll,
Ver. 37. Who saw it's 'round the Sun, in ellipfes fires here rife, &c.] Sir Isaac vastly eccentrical, and very Newton, in calculating the nearly approaching to paravelocity of a Comer's moti- bolas. In which he was on, and the course it de- greatly confirmed, in obscribes, when it becomes vi- ferving between two Cofible in it's descent to, and mets a coincidence in their ascent from, the Sun, con- perihelions, and a perfect jectured, with the highest agreement in their veloci appearance of truth, that ties, Comets revolve perpetually
But when his own great work is but begun,
Trace Science then, with Modesty thy guide;
45 Or Learning's Luxury, or Idleness;
VER. 45.-Vanity, or Spear touches upon this latdress,] These are the first ter advantage with great parts of what the Poet, in force and humour. The the preceding line, calls the Flatterer says to Timon in Scholar's equipage of Pride. distress,
" I cannot cover By vanity, is meant that " the monstrous bulk of luxuriancy of thought and their ingratitude, with expression in which a writer any size of words." The indulges himfelf, to hew the other replies, “Let it go fruitfulness of his fancy or naked, men may see't the invention. By dress, is to
“ better." be understood a lower de VER. 46. Or Learning's gree of that practice, in Luxury, or Idleness ;] The amplification of thought and Luxury of Learning consists ornamented expression, to in dressing up and disguising give force to what the wri- old notions in a new way, ter would convey: but even so as to make them more this, the Poet, in a severe fashionable and palateable ; search after trach, con- instead of examining and demns ; and with great scrutinizing their truth. As judgment. Conciseness of this is often done for pomp thought and simplicity of and shew, it is called luxitexpreslion, being as well the ry; as it is often done too best instruments, as the best to save pains and labour, it vehicles of Truth. Shake-I is called idleness.
Or tricks to thew the stretch of human brain,
II. Two Principles in human nature reign;
Self-love, the spring of motion, acts the soul;
VER. 49, 50:
Ver. 47. Or tricks to fnew the stretch of human Expunge the whole, or lop brain,] Such as the mathe
th' excrescent parts matical demonstrations con- of all our Vices have crecernivg the small quantity ated Arts ;] of matter ; the endless divi- i.e. Those parts of natural fibility of it, &C.
Philosophy, Logic, RhetoVer. 48. Mere curious ric, Poetry, &c. that admipleasure, or ingenious pain;] nister to luxury, deceit, amThat is, when Admiration bition, effeminacy, &c. fets the mind on the rack.
Fix'd like a plant on his peculiar spot,
Most strength the moving principle requires ;
79 Each strengthens Reason, and Self-love restrains.
Let subtle schoolmen teach these friends to fight, More ftudious to divide than to unite; And Grace and Virtue, Sense and Reason split, With all the rash dexterity of wit.
NOTES. Ver. 74. Reafon, the fu- | the future; and by argumenture and the consequence.]i.e. tation, the consequence. By experience Reason collects