“Without the state there would be anarchy for that is, despite all the perfervid ravings of the Marxist Left and statist Right, all that anarchy means—the absence of the state, the opportunity for liberty.”

Alan Moore on Anarchism (2009)
Context: I suppose I first got involved in radical politics as a matter of course, during the late 1960s when it was a part of the culture. The counterculture, as we called it then, was very eclectic and all-embracing. It included fashions of dress, styles of music, philosophical positions, and, inevitably, political positions. And although there would be various political leanings coming to the fore from time to time, I suppose that the overall consensus political standpoint was probably an anarchist one. Although probably back in those days, when I was a very young teenager, I didn’t necessarily put it into those terms. I was probably not familiar enough with the concepts of anarchy to actually label myself as such. It was later, as I went into my twenties and started to think about things more seriously that I came to a conclusion that basically the only political standpoint that I could possibly adhere to would be an anarchist one.
It furthermore occurred to me that, basically, anarchy is in fact the only political position that is actually possible. I believe that all other political states are in fact variations or outgrowths of a basic state of anarchy; after all, when you mention the idea of anarchy to most people they will tell you what a bad idea it is because the biggest gang would just take over. Which is pretty much how I see contemporary society. We live in a badly developed anarchist situation in which the biggest gang has taken over and have declared that it is not an anarchist situation – that it is a capitalist or a communist situation. But I tend to think that anarchy is the most natural form of politics for a human being to actually practice. All it means, the word, is no leaders. An-archon. No leaders.
And I think that if we actually look at nature without prejudice, we find that this is the state of affairs that usually pertains.

Dissenting in Terminiello v. City of Chicago, 337 U.S. 1 (1949); this has sometimes been paraphrased as The Bill of Rights is not a suicide pact.
Judicial opinions
Context: The choice is not between order and liberty. It is between liberty with order and anarchy without either. There is danger that, if the Court does not temper its doctrinaire logic with a little practical wisdom, it will convert the constitutional Bill of Rights into a suicide pact.

Anarchy (1891) http://www.marxists.org/archive/malatesta/1891/xx/anarchy.htm
Context: Anarchy is a word that comes from the Greek, and signifies, strictly speaking, "without government": the state of a people without any constituted authority.
Before such an organization had begun to be considered possible and desirable by a whole class of thinkers, so as to be taken as the aim of a movement (which has now become one of the most important factors in modern social warfare), the word “anarchy” was used universally in the sense of disorder and confusion, and it is still adopted in that sense by the ignorant and by adversaries interested in distorting the truth.

From Discussion with BG Kher and others, 15 August 1940. Gandhi's Wisdom Box (1942), edited by Dewan Ram Parkash, p. 67 also in Collected works of Mahatma Gandhi Vol. 79 (PDF) http://www.gandhiserve.org/cwmg/VOL079.PDF, p. 122
1940s

“Objectivism and the State: An Open Letter to Ayn Rand,” 1969

Source: Understanding International Conflicts: An Introduction to Theory and History (6th ed., 2006), Chapter 1, Is There an Enduring Logic of Conflict in World Politics?, p. 23.

Slavery and Freedom (1939), p. 147
Context: There is absolute truth in anarchism and it is to be seen in its attitude to the sovereignty of the state and to every form of state absolutism. … The religious truth of anarchism consists in this, that power over man is bound up with sin and evil, that a state of perfection is a state where there is no power of man over man, that is to say, anarchy. The Kingdom of God is freedom and the absence of such power... the Kingdom of God is anarchy.

But it will be instituted only by there being more and more people who do not require protection from governmental power, and by there being more and more people who will be ashamed of applying this power.
"On Anarchy", in Pamphlets : Translated from the Russian (1900) as translated by Aylmer Maude, p. 22