5. 'The strange and absurd variety that is so apparent in men's actions, shews plainly they can never proceed immediately from reason; so pure a fountain emits no such troubled waters: they must necessarily arise from the passions, which are to the mind as the winds to a ship; they only can move it, and they too often destroy it; if fair and gentle, they guide it into the harbour; if contrary and furious, they overset it in the waves.

6. 'In the same manner is the mind assisted or endangered by the passions; reason must then take the place of pilot, and can never fail of securing her charge if she be not wanting to herself; the strength of the passions will never be accepted as an excuse for complying with them: they were designed for subjection; and if a man suffers them to get the upper hand, he then betrays the liberty of his own soul.

7. 'As nature has framed the several species of beings as it were in a chain, so man seems to be placed as the middle link between angels and brutes; hence he participates both of flesh and spirit by an admirable tye, which in him occasions perpetual war of passions; and as a man inclines to the angelic or brute part of his constitution, he is then denominated good or bad, virtuous or wicked: if love, mercy, and good-nature prevail, they speak him of the angel; if hatred, cruelly, and envy predominate, they declare his kindred to the brute.

8. 'Hence it was that some ancients imagined, that as men in this life incline more to the angel or the brute, so after their death they should transmigrant into the one or the other; and it would be no unpleasant notion to consider the several species of brutes, into which we may imagine that tyrants, misers, the proud, malicious, and ill-natured, might be changed.

9. 'As a consequence of this original, all passions are in all men, but appear not in all: constitution, education, custom of the, country, reason, and the like causes may improve or abate the strength of them, but still the seeds remain, which are ever ready to sprout forth upon the least encouragement.

10. 'I have heard a story of a good religious man, who having been bred with the milk of a goat, was very modest in public, by a careful reflection he made of his actions, but he frequently had an hour in secret, wherein he had his frisks and capers; and, if we had an opportunity of examining the retirement of the strictest philosophers, no doubt but we should find perpetual returns of those passions they so artfully conceal from the public.

11. 'I remember Machiavel observes, that every state should entertain a perpetual jealousy of its neighbours, that so it should never be unprovided when an emergency happens; in like manner should reason be perpetually on its guard against the passions, and never suffer them to carry on any design that may be destructive of its security; yet, at the same time, it must be careful, that it don't so far break their strength as to render them contemptible, and, consequently, itself unguarded.

12. 'The understanding being of itself too slow and lazy to exert itself into action, it is necessary it should be put in motion by the gentle gales of passion, which may preserve it from stagnation and corruption; for they are necessary to the help of the mind, as the circulation of the animal spirits is to the health of the body; they keep it in life, and strength and vigour: nor is it possible for the mind to perform its offices without their assistance; these motions are given us with our being: they are little spirits, that are born and die with us; to some they are mild, easy and gentle; to others wayward and unruly; yet never too strong for the reins of reason, and the guidance of judgment.

13. 'We may generally observe a pretty nice proportion, between the strength of reason and passion; the greatest geniuses have commonly the strongest affections, as on the other hand, the weaker understandings have generally the weaker passions: and 'tis fit the fury of the coursers should not be too great for the strength of the charioteer.

14. 'Young men, whose passions are not a little unruly, give small hopes of their being considerable; the fire of youth will of course abate, and is a fault, if it be a fault, that mends every day; but surely, unless a man has fire in youth, he can hardly have warmth in old age.