[A]ll human legislation is simply and always an assumption of authority and dominion, where no right of authority or dominion exists. It is, therefor… - Lysander Spooner

If justice be not a natural principle, it is no principle at all. If it be not a natural principle, there is no such thing as justice. If it be not a natural principle, all that men have ever said or written about it, from time immemorial, has been said and written about that which had no existence. If it be not a natural principle, all the appeals for justice that have ever been heard, and all the struggles for justice that have ever been witnessed, have been appeals and struggles for a mere fantasy, a vagary of the imagination, and not for a reality. If justice be not a natural principle, then there is no such thing as injustice; and all the crimes of which the world has been the scene, have been no crimes at all; but only simple events, like the falling of the rain, or the setting of the sun; events of which the victims had no more reason to complain than they had to complain of the running of the streams, or the growth of vegetation. If justice be not a natural principle, governments (so-called) have no more right or reason to take cognizance of it, or to pretend or profess to take cognizance of it, than they have to take cognizance, or to pretend or profess to take cognizance, of any other nonentity; and all their professions of establishing justice, or of maintaining justice, or of rewarding justice, are simply the mere gibberish of fools, or the frauds of imposters. But if justice be a natural principle, then it is necessarily an immutable one; and can no more be changed—by any power inferior to that which established it—than can the law of gravitation, the laws of light, the principles of mathematics, or any other natural law or principle whatever; and all attempts or assumptions, on the part of any man or body of men—whether calling themselves governments, or by any other name—to set up their own commands, wills, pleasure, or discretion, in the place of justice, as a rule of conduct for any human being, are as much an absurdity, an usurpation, and a tyranny, as would be their attempts to set up their own commands, wills, pleasure, or discretion in the place of any and all the physical, mental, and moral laws of the universe. If there be any such principle as justice, it is, of necessity, a natural principle; and, as such, it is a matter of science, to be learned and applied like any other science. And to talk of either adding to, or taking from, it, by legislation, is just as false, absurd, and ridiculous as it would be to talk of adding to, or taking from, mathematics, chemistry, or any other science, by legislation.

Man, no doubt, owes many other moral duties to his fellow men; such as to feed the hungry, clothe the naked, shelter the homeless, care for the sick, protect the defenceless, assist the weak, and enlighten the ignorant. But these are simply moral duties, of which each man must be his own judge, in each particular case, as to whether, and how, and how far, he can, or will, perform them. But of his legal duty—that is, of his duty to live honestly towards his fellow men—his fellow men not only may judge, but, for their own protection, must judge. And, if need be, they may rightfully compel him to perform it. They may do this, acting singly, or in concert. They may do it on the instant, as the necessity arises, or deliberately and systematically, if they prefer to do so, and the exigency will admit of it.

Through all time, so far as history informs us, wherever mankind have attempted to live in peace with each other, both the natural instincts, and the collective wisdom of the human race, have acknowledged and prescribed, as an indispensable condition, obedience to this one only universal obligation: viz., that each should live honestly towards every other. The ancient maxim makes the sum of a man’s legal duty to his fellow men to be simply this: " To live honestly, to hurt no one, to give to every one his due." This entire maxim is really expressed in the single words, to live honestly; since to live honestly is to hurt no one, and give to every one his due.