“If the individual were no longer compelled to prove himself on the market, as a free economic subject, the disappearance of this kind of freedom would be one of the greatest achievements of civilization. The technological processes of mechanization and standardization might release individual energy into a yet uncharted realm of freedom beyond necessity. The very structure of human existence would be altered; the individual would be liberated from the work world's imposing upon him alien needs and alien possibilities. The individual would be free to exert autonomy over a life that would be his own.”

http://www.melaniephillips.com/articles/archives/2000_01.html

Prussianism and Socialism (1919)

Une telle morale [la morale existentialiste] est-elle ou non un individualisme? Oui, si l’on entend par là qu’elle accorde à l’individu une valeur absolue et qu’elle reconnaît qu’a lui seul le pouvoir de fonder son existence. Elle est individualisme au sens où les sagesses antiques, la morale chrétienne du salut, l’idéal de la vertu kantienne méritent aussi ce nom ; elle s’oppose aux doctrines totalitaires qui dressent par-delà I’homme le mirage de l’Humanité. Mais elle n’est pas un solipsisme, puisque l’individu ne se définit que par sa relation au monde et aux autres individus, il n’existe qu’en se transcendant et sa liberté ne peut s’accomplir qu’à travers la liberté d’autrui. Il justifie son existence par un mouvement qui, comme elle, jaillit du coeur de lui-même, mais qui aboutit hors de lui.
Cet individualisme ne conduit pas à l’anarchie du bon plaisir. L’homme est libre ; mais il trouve sa loi dans sa liberté même. D’abord il doit assumer sa liberté et non la fuir; il l’assume par un mouvement constructif : on n’existe pas sans faire; et aussi par un mouvement négatif qui refuse l’oppression pour soi et pour autrui.
Conclusion http://www.marxists.org/reference/subject/ethics/de-beauvoir/ambiguity/ch04.htm
The Ethics of Ambiguity (1947)

Individual Liberty (1926), Liberty and Politics

Variant: And this I believe: that the free, exploring mind of the individual human is the most valuable thing in the world. And this I would fight for: the freedom of the mind to take any direction it wishes, undirected.
Source: East of Eden (1952)
Context: And this I believe: that the free, exploring mind of the individual human is the most valuable thing in the world. And this I would fight for: the freedom of the mind to take any direction it wishes, undirected. And this I must fight against: any religion, or government which limits or destroys the individual. This is what I am and what I am about.
Context: Our species is the only creative species, and it has only one creative instrument, the individual mind and spirit of a man. Nothing was ever created by two men. There are no good collaborations, whether in art, in music, in poetry, in mathematics, in philosophy. Once the miracle of creation has taken place, the group can build and extend it, but the group never invents anything. The preciousness lies in the lonely mind of a man.
And now the forces marshaled around the concept of the group have declared a war of extermination on that preciousness, the mind of man. By disparagement, by starvation, by repressions, forced direction, and the stunning blows of conditioning, the free, roving mind is being pursued, roped, blunted, drugged. It is a sad suicidal course our species seems to have taken.
And this I believe: that the free, exploring mind of the individual human is the most valuable thing in the world. And this I would fight for: the freedom of the mind to take any direction it wishes, undirected. And this I must fight against: any religion, or government which limits or destroys the individual. This is what I am and what I am about. I can understand why a system built on a pattern must try to destroy the free mind, for it is the one thing which can by inspection destroy such a system. Surely I can understand this, and I hate it and I will fight against it to preserve the one thing that separates us from the uncreative beasts. If the glory can be killed, we are lost.

As quoted in Richard Dawkins causes outcry after likening the burka to a bin liner https://www.telegraph.co.uk/news/religion/7936221/Richard-Dawkins-causes-outcry-after-likening-the-burka-to-a-bin-liner.html (10 August 2010), The Telegraph.

Rocky Mountain News column, 2000

Part II, Ch. 3
O Pioneers! (1913)
Context: Freedom so often means that one isn't needed anywhere. Here you are an individual, you have a background of your own, you would be missed. But off there in the cities there are thousands of rolling stones like me. We are all alike; we have no ties, we know nobody, we own nothing. When one of us dies, they scarcely know where to bury him... We have no house, no place, no people of our own. We live in the streets, in the parks, in the theatres. We sit in restaurants and concert halls and look about at the hundreds of our own kind and shudder.

Source: The Importance of Living (1937), Ch. I : The Awakening, p. 12
Context: I am doing my best to glorify the scamp or vagabond. I hope I shall succeed. For things are not so simple as they sometimes seem. In this present age of threats to democracy and individual liberty, probably only the scamp and the spirit of the scamp alone will save us from being lost in serially numbered units in the masses of disciplined, obedient, regimented and uniformed coolies. The scamp will be the last and most formidable enemy of dictatorships. He will be the champion of human dignity and individual freedom, and will be the last to be conquered. All modern civilization depends entirely upon him.