The definition of right.

7. Among so many dangers therefore, as the natural lusts of men do daily threaten each other withal, to have a care of one’s self is so far from being a matter scornfully to be looked upon, that one has neither the power nor wish to have done otherwise. For every man is desirous of what is good for him, and shuns what is evil, but chiefly the chiefest of natural evils, which is death; and this he doth by a certain impulsion of nature, no less than that whereby a stone moves downward. It is therefore neither absurd nor reprehensible, neither against the dictates of true reason, for a man to use all his endeavours to preserve and defend his body and the members thereof from death and sorrows. But that which is not contrary to right reason, that all men account to be done justly, and with right. Neither by the word right is anything else signified, than that liberty which every man hath to make use of his natural faculties according to right reason. Therefore the first foundation of natural right is this, that every man as much as in him lies endeavour to protect his life and members.

A right to the end gives also a right to the means.

8. But because it is in vain for a man to have a right to the end, if the right to the necessary means be denied him, it follows, that since every man hath a right to preserve himself, he must also be allowed a right to use all the means, and do all the actions, without which he cannot preserve himself.

By the right of nature, every man is judge of the means which tend to his preservation.

9. Now whether the means which he is about to use, and the action he is performing, be necessary to the preservation of his life and members or not, he himself, by the right of nature, must be judge. For if it be contrary to right reason that I should judge of mine own peril, say, that another man is judge. Why now, because he judgeth of what concerns me, by the same reason, because we are equal by nature, will I judge also of things which do belong to him. Therefore it agrees with right reason, that is, it is the right of nature that I judge of his opinion, that is, whether it conduce to my preservation or not.

By right of nature, all men have equal right to all things.

10. Nature hath given to every one a right to all; that is, it was lawful for every man, in the bare state of nature,[[3]] or before such time as men had engaged themselves by any covenants or bonds, to do what he would, and against whom he thought fit, and to possess, use, and enjoy all what he would, or could get. Now because whatsoever a man would, it therefore seems good to him because he wills it, and either it really doth, or at least seems to him to contribute towards his preservation, (but we have already allowed him to be judge, in the foregoing article, whether it doth or not, insomuch as we are to hold all for necessary whatsoever he shall esteem so), and by the [7th article] it appears that by the right of nature those things may be done, and must be had, which necessarily conduce to the protection of life and members, it follows, that in the state of nature, to have all, and do all, is lawful for all. And this is that which is meant by that common saying, nature hath given all to all. From whence we understand likewise, that in the state of nature profit is the measure of right.

The right of all to all is unprofitable.

11. But it was the least benefit for men thus to have a common right to all things. For the effects of this right are the same, almost, as if there had been no right at all. For although any man might say of every thing, this is mine, yet could he not enjoy it, by reason of his neighbour, who having equal right and equal power, would pretend the same thing to be his.