Classical science was based upon the belief that it is possible to formulate both the position and velocity at one time of any given particle. It followed that knowledge of the position and velocity of a given number of particles would enable the future behavior of the whole collection to be accurately predicted. The principle of Heisenberg is that given the determination of position, its velocity can be stated only as of a certain order of probability, while if its velocity is determined the correlative factor of position can be stated only as of a certain order of probability. Both cannot be determined at once, from which it follows necessarily that the future of the whole collection cannot possibly be foretold except in terms of some order of probability.

Admit it, it is your youth that you regret, more even than your crime; it is my youth you hate, even more than my innocence.

Let us ask the Gods not for possessions, but for things to do; happiness is in making things rather than consuming them.

In everything well known something worthy of thought still lurks.

It is easier for the prince to make friends of those men who were contented under the former government, and are therefore his enemies, than of those who, being discontented with it, were favourable to him and encouraged him to seize it. 

How can I, who was not able to retain my own past, hope to save that of another?

By a lie a man throws away and, as it were, annihilates his dignity as a man. A man who himself does not believe what he tells another ... has even less worth than if he were a mere thing. ... makes himself a mere deceptive appearance of man, not man himself.

Being at one is god-like and good, but human, too human, the mania Which insists there is only the One, one country, one truth, and one way.

In classroom settings I have often listened to groups of students tell me that racism really no longer shapes the contours of our lives, that there is no such thing as racial difference, that "we are all just people." Then a few minutes later I give them an exercise. I ask if they were about to die and could choose to come back as a white male, a white female, a black female, or a black male, which identity would they choose. Each time I do this exercise, most individuals, irrespective of gender or race invariably choose whiteness, and most often male whiteness. Black females are the least chosen. When I ask students to explain their choice they proceed to do a sophisticated analysis of privilege based on race (with perspectives that take gender and class into consideration).

What surrounds us we endure better for giving it a name - and moving on.

The facts we see depend on where we are placed, and the habits of our eyes.

Struggling to be brief I become obscure.

Understand however that every man is worth just so much as the things are worth about which he busies himself.

The politician may change sides so frequently as to find himself always in the majority, but most politicians have a preference for one party to the other, and subordinate their love of power to this preference.

I do not open up the truth to one who is not eager to get knowledge, nor help out any one who is not anxious to explain himself. When I have presented one corner of a subject to any one, and he cannot from it learn the other three, I do not repeat my lesson.

On the whole, the enjoyment of leisure is something which decidedly costs less than the enjoyment of luxury. All it requires is an artistic temperament which is bent on seeking a perfectly useless afternoon spent in a perfectly useless manner.

It is the way of the superior man to prefer the concealment of his virtue, while it daily becomes more illustrious, and it is the way of the mean man to seek notoriety, while he daily goes more and more to ruin. It is characteristic of the superior man, appearing insipid, yet never to produce satiety; while showing a simple negligence, yet to have his accomplishments recognized; while seemingly plain, yet to be discriminating. He knows how what is distant lies in what is near. He knows where the wind proceeds from. He knows how what is minute becomes manifested. Such a one, we may be sure, will enter into virtue.

Nothing is more certainly written in the book of fate than that these people are to be free. Nor is it less certain that the two races, equally free, cannot live in the same government. Nature, habit, opinion has drawn indelible lines of distinction between them. It is still in our power to direct the process of emancipation and deportation peaceably and in such slow degree as that the evil will wear off insensibly, and their place be pari passu filled up by free white laborers. If on the contrary it is left to force itself on, human nature must shudder at the prospect held up.

The bourgeoisie hides the fact that it is the bourgeoisie and thereby produces myth; revolution announces itself openly as revolution and thereby abolishes myth.

The theory of transparency was set up in reaction to the theory of mental images, of an inner tableu which the perception of an object would leave in us. In imagination our gaze always goes outward, but imagination modifies and neutralizes the gaze: the real world appears in it as it were between parenthesis or quote marks.

The Reformation was a popular uprising, and for a century and a half drenched Europe in blood. The beginnings of the Scientific movement were confined to a minority among the intellectual elite.... The worst that happened to men of science was that Galileo suffered an honorable detention and a mild reproof, before dying peacefully in his bed. The way in which the persecution of Galileo has been remembered is a tribute to the quiet commencement of the most intimate change in outlook which the human race had yet encountered. Since a babe was born in a manger, it may be doubted whether so great a thing has happened with so little stir.

The country that is more developed industrially only shows, to the less developed, the image of its own future.

In speaking of sociological laws or natural laws of social life I have in mind such laws as are formulated by modern economic theories, for instance, the theory of international trade, or the theory of the trade cycle. These and other important sociological laws are connected with the functioning of social institutions. These laws play a role in our social life corresponding to the role played in mechanical engineering by, say, the principle of the lever. For institutions, like levers, are needed if we want to achieve anything which goes beyond the power of our muscles. Like machines, institutions multiply our power for good or evil. Like machines, they need intelligent supervision by someone who understands their way of functioning and, most of all, their purpose, since we cannot build them so that they work entirely automatically.

Anytime two human beings find genuine pleasure, joy, and love, the stars smile and the universe is enriched. Yet as long as that pleasure, joy, and love is still predicated on myths of black sexuality, the more fundamental challenge of humane interaction remains unmet.

For I find that even those that have sought knowledge for itself and not for benefit, or ostentation, or any practical enablement in the course of their life, have nevertheless propounded to themselves a wrong mark, namely, satisfaction, which men call truth, and not operation. For as in the courts and services of princes and states, it is a much easier matter to give satisfaction than to do the business; so in the inquiring of causes and reasons it is much easier to find out such causes as will satisfy the mind of man, and quiet objections, than such causes as will direct him and give him light to new experiences and inventions.

To the Whigs of the seventeenth century we owe it that we have a House of Commons. To the Whigs of the nineteenth century we owe it that the House of Commons has been purified. The abolition of the slave trade, the abolition of colonial slavery, the extension of popular education, the mitigation of the rigour of the penal code, all, all were effected by that party; and of that party, I repeat, I am a member. I look with pride on all that the Whigs have done for the cause of human freedom and of human happiness. I see them now hard pressed, struggling with difficulties, but still fighting the good fight. At their head I see men who have inherited the spirit and the virtues, as well as the blood, of old champions and martyrs of freedom... While one shred of the old banner is flying, by that banner will I at least be found.

I get a certain pleasure in knowing that I live not merely in a city but in Manhattan, the center of New York City, a region so unique in many ways that I honestly believe that Earth is divided into halves: Manhattan and non-Manhattan.

Truths begin by a conflict with the police - and end by calling them in.

Philosophers are adults who persist in asking childish questions. 

All the seemingly positive valuations and judgments of ressentiment are hidden devaluations and negations.

The priests have so disfigured the simple religion of Jesus that no one who reads the sophistications they have engrafted on it, from the jargon of Plato, of Aristotle & other mystics, would conceive these could have been fathered on the sublime preacher of the sermon on the mount.

World War III is a guerrilla information war with no division between military and civilian participation.

Such would be the successive phases of the image:it is the reflection of a profound reality;it masks and denatures a profound reality;it masks the absence of a profound reality;it has no relation to any reality whatsoever: it is its own pure simulacrum.In the first case, the image is a good appearance-representation is of the sacramental order. In the second, it is an evil appearance-it is of the order of maleficence. In the third, it plays at being an appearance-it is of the order of sorcery. In the fourth, it is no longer of the order of appearances, but of simulation.

We have, indeed, in the part taken by many scientific men in this controversy of "Law versus Miracle," a good illustration of the tenacious vitality of superstitions. Ask one of our leading geologists or physiologists whether he believes in the Mosaic account of the creation, and he will take the question as next to an insult. Either he rejects the narrative entirely, or understands it in some vague non-natural sense. ...Whence ...this notion of "special creations"...Why, after rejecting all the rest of the story, he should strenuously defend this last remnant of it, as though he had received it on valid authority, he would be puzzled to say.

You [a disciple], shall I teach you about knowledge? What you know, you know, what you don't know, you don't know. This is true knowledge.

A minister of state is excusable for the harm he does when the helm of government has forced his hand in a storm; but in the calm he is guilty of all the good he does not do.

When we consider the being and substance of that universe in which we are immutably set, we shall discover that neither we ourselves nor any substance doth suffer death; for nothing is in fact diminished in its substance, but all things, wandering through infinite space, undergo change of aspect.

This same Man-of-Letters Hero must be regarded as our most important modern person. He, such as he may be, is the soul of all.

The three qualities of space and time reciprocally affect and qualify one another in experience. Space is inane save as occupied with active volumes. Pauses are holes when they do not accentuate masses and define figures as individuals. Extension sprawls and finally benumbs if it does not interact with place so as to assume intelligible distribution. Mass is nothing fixed. It contracts and expands, asserts and yields, according to its relations to other spatial and enduring things.... these are then the common properties of the matter of arts because there are general conditions without which an experience is not possible. As we saw earlier, the basic condition is felt relationship between doing and undergoing as the organism and environment interact.

The native and untaught suggestions of inquisitive children do often offer things, that may set a considering man's thoughts on work. And I think there is frequently more to be learn'd from the unexpected questions of a child than the discourses of men, who talk in a road, according to the notions they have borrowed, and the prejudices of their education.

When we resist impermanence, the self intensifies.

No position is so false as having understood and still remaining alive.

Not to be loved is a misfortune, but it is an insult to be loved no longer.

Black women control the world. We are through being discriminated against.

I recall an endless desert of infinite and flaming matter. I am burning! I pass through immeasurable, unorganized time, completely done, despairing, crying in the wilderness. And slowly the flame subsides, the womb of matter grows cool, the stone comes alive, breaks open, and a small green leaf uncurls into the air, trembling. It clutches the soil, steadies itself, raises its head and hands, grasps the air, the water, the light, and sucks at the Universe.

I hope I shall never live to see Anarchism become thoroughly respectable, for then I shall have to look for a new ideal.

It lays down, as is generally known, that our speculations upon all subjects whatsoever, pass necessarily through three successive stages: a Theological stage, in which free play is given to spontaneous fictions admitting of no proof; the Metaphysical stage, characterized by the prevalence of personified abstractions or entities; lastly, the Positive stage, based upon an exact view of the real facts of the case.