No more useful inquiry can be proposed than that which seeks to determine the nature and the scope of human knowledge. ... This investigation should be undertaken once at least in his life by anyone who has the slightest regard for truth, since in pursuing it the true instruments of knowledge and the whole method of inquiry come to light. But nothing seems to me more futile than the conduct of those who boldly dispute about the secrets of nature ... without yet having ever asked even whether human reason is adequate to the solution of these problems.

I am normally said to be free to the degree to which no man or body of men interferes with my activity. Political liberty in this sense is simply the area within which a man can act unobstructed by others. If I am prevented by others from doing what I could otherwise do, I am to that degree unfree; and if this area is contracted by other men beyond a certain minimum, I can be described as being coerced, or, it may be, enslaved. Coercion is not, however, a term that covers every form of inability. If I say that I am unable to jump more than ten feet in the air, or cannot read because I am blind, or cannot understand the darker pages of Hegel, it would be eccentric to say that I am to that degree enslaved or coerced. Coercion implies the deliberate interference of other human beings within the area in which I could otherwise act.

If someone asked us 'but is that true?' we might say "yes" to him; and if he demanded grounds we might say "I can't give you any grounds, but if you learn more you too will think the same."

It is easy to live for others; everybody does. I call on you to live for yourselves.

I wish to suggest that a man may be very industrious, and yet not spend his time well. There is no more fatal blunderer than he who consumes the greater part of his life getting his living. All great enterprises are self-supporting. The poet, for instance, must sustain his body by his poetry, as a steam planing-mill feeds its boilers with the shavings it makes. You must get your living by loving.

Poverty is a crime. I do not mean that it is a crime to be poor. Murder is a crime; but it is not a crime to be murdered; and a man who is in poverty, I look upon, not as a criminal in himself, so much as the victim of a crime for which others, as well perhaps as himself, are responsible.

We have lost, being born, as much as we shall lose, dying. Everything.

An arrogant person considers himself perfect. This is the chief harm of arrogance. It interferes with a person's main task in life-becoming a better person.

The sceptics end in the infidelity which asserts the problem to be insoluble, or in the atheism which denies the existence of any orderly progress and governance of things: the men of genius propound solutions which grow into systems of Theology or of Philosophy, or veiled in musical language which suggests more than it asserts, take the shape of the Poetry of an epoch.

As much in vain, perhaps, will they search ancient history for examples of the modern Slave-Trade. Too many nations enslaved the prisoners they took in war. But to go to nations with whom there is no war, who have no way provoked, without farther design of conquest, purely to catch inoffensive people, like wild beasts, for slaves, is an hight of outrage against Humanity and Justice, that seems left by Heathen nations to be practised by pretended Christians. How shameful are all attempts to colour and excuse it!

People like us are unhappy in this world and in the next, I guess if we made it to heaven, we'd have to help make it thunder.

His imagination resembled the wings of an ostrich. It enabled him to run, though not to soar.

The noblest Digladiation is in the Theatre of ourselves.

I am not alone in my fear, nor alone in my hope, nor alone in my shouting. A tremendous host, an onrush of the Universe fears, hopes, and shouts with me. I am an improvised bridge, and when Someone passes over me, I crumble away behind Him.

Every word is an adamantine shell which encloses a great explosive force. To discover its meaning you must let it burst inside you like a bomb and in this way liberate the soul which it imprisons.

If you want to be happy, be.

The case of the conscience of Eichmann, which is admittedly complicated but is by no means unique, is scarcely comparable to the case of the German generals, one of whom, when asked at Nuremberg, "How was it possible that all of you honorable generals could continue to serve a murderer with such unquestioning loyalty?," replied that it was "not the task of a soldier to act as judge over his supreme commander. Let history do that or God in Heaven."

The individual produces an object and, by consuming it, returns to himself, but returns as a productive and self reproducing individual. Consumption thus appears as a moment of production.

There was no denying that he would always be conscious of the fact that an Earthman was an Earthman. He couldn't help that. That was the result of a childhood immersed in an atmosphere of bigotry so complete that it was almost invisible, so entire that you accepted its axioms as second nature. Then you left it and saw it for what it was when you looked back.

The division between human and robot is perhaps not as significant as that between intelligence and nonintelligence.

Few men have been admired by their own households.

We carry with us the wonders, we seek without us: There is all Africa, and her prodigies in us; we are that bold and adventurous piece of nature, which he that studies, wisely learns in a compendium, what others labour at in a divided piece and endless volume.

It is better to form new words as technical terms, than to employ old ones in which the last three Aphorisms cannot be complied with.

Show me that the good in life does not depend upon life's length, but upon the use we make of it; also, that it is possible, or rather usual, for a man who has lived long to have lived too little. Say to me when I lie down to sleep: "You may not wake again!" And when I have waked: "You may not go to sleep again!" Say to me when I go forth from my house: "You may not return!" And when I return: "You may never go forth again!"

A little of all things, but nothing of everything, after the French manner.

There is no history of mankind, there is only an indefinite number of histories of all kinds of aspects of human life. And one of these is the history of political power. This is elevated into the history of the world. But this, I hold, is an offence against every decent conception of mankind. It is hardly better than to treat the history of embezzlement or of robbery or of poisoning as the history of mankind. For the history of power politics is nothing but the history of international crime and mass murder (including it is true, some of the attempts to suppress them). This history is taught in schools, and some of the greatest criminals are extolled as heroes. 

True science teaches, above all, to doubt and be ignorant.

People with healthy self-esteem do not need to create pretend identities.

The infinite, absolute character of Virtue has passed into a finite, conditional one; it is no longer a worship of the Beautiful and Good; but a calculation of the Profitable.

God made us: invented us as a man invents an engine. A car is made to run on petrol, and it would not run properly on anything else. Now God designed the human machine to run on Himself.

No man is liberated from fear who dare not see his place in the world as it is; no man can achieve the greatness of which he is capable until he has allowed himself to see his own littleness.

Prove your words by your deeds.

Until writing was invented, man lived in acoustic space: boundless, directionless, horizonless, in the dark of the mind, in the world of emotion, by primordial intuition, terror. Speech is a social chart of this bog.

Time is a game played beautifully by children.

The city no longer exists except as a cultural ghost for tourists. Any highway eatery with its TV set, newspaper and magazine is as cosmopolitan as New York or Paris.

There is no more miserable human being than one in whom nothing is habitual but indecision.

Better that the nation grow poor for a cause we can honor, than grow rich for an end that is unknown. Who can regard without deep misgiving the process of accumulating wealth unaccompanied by a corresponding growth of knowledge as to the uses to which wealth must be applied? This is what we see in normal times, and the spectacle is profoundly disturbing. Far less disturbing at all events is that process of spending the wealth which we have now to witness.

To be acutely conscious is a disease, a real, honest-to-goodness disease.

There is something which unites magic and applied science while separating both from the wisdom of earlier ages. For the wise men of old the cardinal problem had been how to conform the soul to reality, and the solution had been knowledge, self-discipline, and virtue. For magic and applied science alike the problem is how to subdue reality to the wishes of men.

In our contemporary social and intellectual plight, it is nothing less than shocking to discover that those persons who claim to have discovered an absolute are usually the same people who also pretend to be superior to the rest. To find people in our day attempting to pass off to the world and recommending to others some nostrum of the absolute which they claim to have discovered is merely a sign of the loss of and the need for intellectual and moral certainty, felt by broad sections of the population who are unable to look life in the face.

The goal of liberalism is the peaceful cooperation of all men. It aims at peace among nations too. When there is private ownership of the means of production everywhere and when laws, the tribunals and the administration treat foreigners and citizens on equal terms, it is of little importance where a country's frontiers are drawn. Nobody can derive any profit from conquest, but many can suffer losses from fighting. War no longer pays; there is no motive for aggression. The population of every territory is free to determine to which state it wishes to belong, or whether it prefers to establish a state of its own. All nations can coexist peacefully, because no nation is concerned about the size of its state.

The wealth required by nature is limited and is easy to procure; but the wealth required by vain ideals extends to infinity.

Usually, when we are told that X is Y we know how it is supposed to be true, but that depends on a conceptual or theoretical background and is not conveyed by the 'is' alone. ... But when the two terms of the identification are very disparate it may not be so clear how it could be true ... and a theoretical framework may have to be supplied to enable us to understand this. Without the framework, an air of mysticism surrounds the identification.This explains the magical flavor of popular presentations of fundamental scientific discoveries, given out as propositions to which one must subscribe without really understanding them. For example, people are now told at an early age that all matter is really energy. But despite the fact that they know what 'is' means, most of them never form a conception of what makes this claim true, because they lack the theoretical background.

In the highest civilization, the book is still the highest delight. He who has once known its satisfactions is provided with a resource against calamity.

Even a single hair casts its shadow.

When I consider the short duration of my life, swallowed up in the eternity before and after, the small space which I fill, or even can see, engulfed in the infinite immensity of spaces whereof I know nothing, and which know nothing of me, I am terrified, and wonder that I am here rather than there, for there is no reason why here rather than there, or now rather than then. Who has set me here? By whose order and design have this place and time been destined for me? It is not well to be too much at liberty. It is not well to have all we want.How many kingdoms know nothing of us! The eternal silence of these infinite spaces alarms me.

Here was buried Thomas Jefferson, author of the Declaration of American Independence, of the Statute of Virginia for Religious Freedom, and Father of the University of Virginia. Epitaph, upon his instructions to erect a "a plain die or cube ... surmounted by an Obelisk" with "the following inscription, and not a word more...because by these, as testimonials that I have lived, I wish most to be remembered." It omits that he had been President of the United States, a position of political power and prestige, and celebrates his involvement in the creation of the means of inspiration and instruction by which many human lives have been liberated from oppression and ignorance.