“Of liberty I would say that, in the whole plenitude of its extent, it is unobstructed action according to our will. But rightful liberty is unobstructed action according to our will within limits drawn around us by the equal rights of others. I do not add "within the limits of the law" because law is often but the tyrant's will, and always so when it violates the rights of the individual.”

Item 38
Proposals for a New Law Code (1768)

Source: A Theory of Justice (1971; 1975; 1999), p. 217

Source: Liberalism (1911), Chapter II, The Elements of Liberalism, p. 16.

The Ballot or the Bullet (1964), Speech in Cleveland, Ohio (April 3, 1964)
Context: I don’t mean go out and get violent; but at the same time you should never be nonviolent unless you run into some nonviolence. I’m nonviolent with those who are nonviolent with me. But when you drop that violence on me, then you’ve made me go insane, and I’m not responsible for what I do. And that’s the way every Negro should get. Any time you know you’re within the law, within your legal rights, within your moral rights, in accord with justice, then die for what you believe in. But don’t die alone. Let your dying be reciprocal. This is what is meant by equality. What’s good for the goose is good for the gander.

1840s, Essays: First Series (1841), Compensation
Context: The league between virtue and nature engages all things to assume a hostile front to vice. The beautiful laws and substances of the world persecute and whip the traitor. He finds that things are arranged for truth and benefit, but there is no den in the wide world to hide a rogue. Commit a crime, and the earth is made of glass. Commit a crime, and it seems as if a coat of snow fell on the ground, such as reveals in the woods the track of every partridge and fox and squirrel and mole. You cannot recall the spoken word, you cannot wipe out the foot-track, you cannot draw up the ladder, so as to leave no inlet or clew. Some damning circumstance always transpires. The laws and substances of nature — water, snow, wind, gravitation — become penalties to the thief.
On the other hand, the law holds with equal sureness for all right action. Love, and you shall be loved. All love is mathematically just, as much as the two sides of an algebraic equation. The good man has absolute good, which like fire turns every thing to its own nature, so that you cannot do him any harm; but as the royal armies sent against Napoleon, when he approached, cast down their colors and from enemies became friends, so disasters of all kinds, as sickness, offence, poverty, prove benefactors:

Hayek's Journey: The Mind of Friedrich Hayek (2003)

Source: "La Commune de Paris et la notion de l'état" (The Commune of Paris and the notion of the state) http://libcom.org/library/paris-commune-mikhail-bakunin as quoted in Noam Chomsky: Notes on Anarchism (1970) http://pbahq.smartcampaigns.com/node/222
Context: I am a fanatic lover of liberty, considering it as the unique condition under which intelligence, dignity and human happiness can develop and grow; not the purely formal liberty conceded, measured out and regulated by the State, an eternal lie which in reality represents nothing more than the privilege of some founded on the slavery of the rest; not the individualistic, egoistic, shabby, and fictitious liberty extolled by the School of J.-J. Rousseau and other schools of bourgeois liberalism, which considers the would-be rights of all men, represented by the State which limits the rights of each — an idea that leads inevitably to the reduction of the rights of each to zero. No, I mean the only kind of liberty that is worthy of the name, liberty that consists in the full development of all the material, intellectual and moral powers that are latent in each person; liberty that recognizes no restrictions other than those determined by the laws of our own individual nature, which cannot properly be regarded as restrictions since these laws are not imposed by any outside legislator beside or above us, but are immanent and inherent, forming the very basis of our material, intellectual and moral being — they do not limit us but are the real and immediate conditions of our freedom.

199.
Ctesiphontem