“Our own vitality as well as that of others frightens us, if it still manages to surface, we respond with rage and turn against our own freedom. It is vitality itself that we are opposing.”

1840s, Heroes and Hero-Worship (1840), The Hero as Poet
Context: I cannot call this Shakspeare a "Sceptic," as some do; his indifference to the creeds and theological quarrels of his time misleading them. No: neither unpatriotic, though he says little about his Patriotism; nor sceptic, though he says little about his Faith. Such "indifference" was the fruit of his greatness withal: his whole heart was in his own grand sphere of worship (we may call it such); these other controversies, vitally important to other men, were not vital to him.

Hayne's Speech on Mr. Foot's Resolution, January 21, 1830, page 13.

Verk, edited by Kletzkin, xi. 277f.

"Compromise, Hell!" Orion magazine (November/December 2004) http://www.orionmagazine.org/index.php/articles/article/147/.
Context: We Americans are not usually thought to be a submissive people, but of course we are. Why else would we allow our country to be destroyed? Why else would we be rewarding its destroyers? Why else would we all — by proxies we have given to greedy corporations and corrupt politicians — be participating in its destruction? Most of us are still too sane to piss in our own cistern, but we allow others to do so and we reward them for it. We reward them so well, in fact, that those who piss in our cistern are wealthier than the rest of us.
How do we submit? By not being radical enough. Or by not being thorough enough, which is the same thing.

Section IX, "Man Alone with Himself" / aphorism 571
Human, All Too Human (1878), Helen Zimmern translation

Out of Control: The New Biology of Machines, Social Systems and the Economic World (1995)

Source: The Revolt of the Masses (1929), Chapter XIV: Who Rules The World?
Context: No one knows toward what center human things are going to gravitate in the near future, and hence the life of the world has become scandalously provisional. Everything that today is done in public and in private — even in one's inner conscience — is provisional, the only exception being certain portions of certain sciences. He will be a wise man who puts no trust in all that is proclaimed, upheld, essayed, and lauded at the present day. All that will disappear as quickly as it came. All of it, from the mania for physical sports (the mania, not the sports themselves) to political violence; from "new art" to sun-baths at idiotic fashionable watering-places. Nothing of all that has any roots; it is all pure invention, in the bad sense of the word, which makes it equivalent to fickle caprice. It is not a creation based on the solid substratum of life; it is not a genuine impulse or need. In a word, from the point of view of life it is false.
We are in presence of the contradiction of a style of living which cultivates sincerity and is at the same time a fraud. There is truth only in an existence which feels its acts as irrevocably necessary. There exists today no politician who feels the inevitableness of his policy, and the more extreme his attitudes, the more frivolous, the less inspired by destiny they are. The only life with its roots fixed in earth, the only autochthonous life, is that which is made of inevitable acts. All the rest, all that it is in our power to take or to leave or to exchange for something else, is mere falsification of life. Life today is the fruit of an interregnum, of an empty space between two organizations of historical rule — that which was, that which is to be. For this reason it is essentially provisional. Men do not know what institutions to serve in truth; women do not know what type of men they in truth prefer.
The European cannot live unless embarked upon some great unifying enterprise. When this is lacking, he becomes degraded, grows slack, his soul is paralyzed. We have a commencement of this before our eyes today. The groups which up to today have been known as nations arrived about a century ago at their highest point of expansion. Nothing more can be done with them except lead them to a higher evolution. They are now mere past accumulating all around Europe, weighing it down, imprisoning it. With more vital freedom than ever, we feel that we cannot breathe the air within our nations, because it is confined air. What was before a nation open to all the winds of heaven, has turned into something provincial, an enclosing space.

Existentialism Is a Humanism, lecture http://www.marxists.org/reference/archive/sartre/works/exist/sartre.htm (1946)
Context: We will freedom for freedom’s sake, in and through particular circumstances. And in thus willing freedom, we discover that it depends entirely upon the freedom of others and that the freedom of others depends upon our own. Obviously, freedom as the definition of a man does not depend upon others, but as soon as there is a commitment, I am obliged to will the liberty of others at the same time as my own. I cannot make liberty my aim unless I make that of others equally my aim.

2011, Address on interventions in Libya (March 2011)
Context: For generations, we have done the hard work of protecting our own people, as well as millions around the globe. We have done so because we know that our own future is safer, our own future is brighter, if more of mankind can live with the bright light of freedom and dignity. 
Tonight, let us give thanks for the Americans who are serving through these trying times, and the coalition that is carrying our effort forward. And let us look to the future with confidence and hope not only for our own country, but for all those yearning for freedom around the world.