"For the laws of nature, as I have shewed in the end of the fifteenth chapter, are immutable and eternal; but the force and efficacy of these laws depend upon the security which men have of being able …"

"For if we could not see the motions of the stars, we should not know that there were any stars."

"For to believe that any one should be so fool-hardy, as to put himself into a state of war, without necessity, is to believe that he is a fool."

"The right of nature... is the liberty each man hath, to use his own power, as he will himself, for the preservation of his own nature; that is to say, of his own life."

"For seeing life is but a motion of limbs, the beginning whereof is in some principal part within; why may we not say, that all automata (engines that move themselves by springs and wheels as doth a wa…"