No man is exempt from saying silly things; the mischief is to say them deliberately.

So far as living instruments of labour are concerned, for instance horses, their reproduction is timed by nature itself. Their average lifetime as instruments of labour is determined by the laws of nature. As soon as this term has expired they must be replaced by new ones. A horse cannot be replaced piecemeal; it must be replaced by another horse.

The primary use of knowledge is for such guidance of conduct under all circumstances as shall make living complete. All other uses of knowledge are secondary.

The media have substituted themselves for the older world.

It is a profoundly erroneous truism, repeated by all copy-books and by eminent people when they are making speeches, that we should cultivate the habit of thinking of what we are doing. The precise opposite is the case. Civilization advances by extending the number of important operations which we can perform without thinking about them. Operations of thought are like cavalry charges in a battle - they are strictly limited in number, they require fresh horses, and must only be made at decisive moments.

Survival machines that can simulate the future are one jump ahead of survival machines that who can only learn of the basis of trial and error. The trouble with overt trial is that it takes time and energy. The trouble with overt error is that it is often fatal. ...The evolution of the capacity to simulate seems to have culminated in subjective consciousness. Why this should have happened is, to me, the most profound mystery facing modern biology.

Just as modern mass production requires the standardization of commodities, so the social process requires standardization of man, and this standardization is called equality.

Fortunate those who, born before science, were privileged to die of their first disease!

Life is like riding a bicycle. To keep your balance you must keep moving.

But plants, though they have not powers of perception, yet, as they have life, certainly approach very nearly to those things which are endowed with sentient faculties. What then is so completely insensible as stony substance? yet even in this, there appears to be a desire of union. Thus the loadstone attracts iron to it, and holds it fast in its embrace, when so attracted. Indeed, the attraction of cohesion, as a law of love, takes place throughout all inanimate nature.

Altogether, Jesus never behaves like a man wandering in a system of delusions. He reacts in absolutely normal fashion to what is said to Him, and to the events that concern Him. He is never out of touch with reality.

The multitude is the real productive force of our social world, whereas Empire is a mere apparatus of capture that lives only off the vitality of the multitude - as Marx would say, a vampire regime of accumulated dead labor that survives only by sucking off the blood of the living.

The modern world gives proof at every point that it is far easier to destroy institutions than to create them. Nevertheless, few people seem to understand this truth.

I'm constantly amazed by how easily we love ourselves above all others, yet we put more stock in the opinions of others than in our own estimation of self....How much credence we give to the opinions our peers have of us and how little to our very own!

The whole of science is nothing more than a refinement of every day thinking.

A teacher who can show good, or indeed astounding results while he is teaching, is still not on that account a good teacher, for it may be that, while his pupils are under his immediate influence, he raises them to a level which is not natural to them, without developing their own capacities for work at this level, so that they immediately decline again once the teacher leaves the schoolroom.

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.

Giving then to matter all the properties which philosophy knows it has, or all that atheism ascribes to it, and can prove, and even supposing matter to be eternal, it will not account for the system of the universe or of the solar system, because it will not account for motion, and it is motion that preserves it. When, therefore, we discover a circumstance of such immense importance, that without it the universe could not exist, and for which neither matter, nor any, nor all, the properties of matter can account, we are by necessity forced into the rational and comfortable belief of the existence of a cause superior to matter, and that cause man calls, God.

Scientists have pushed back the horizon of time from the biblical 6,000 years to 4,600,000,000 years for the age of Earth a 760,000-fold increase.

The dominion of bad men is hurtful chiefly to themselves who rule, for they destroy their own souls by greater license in wickedness; while those who are put under them in service are not hurt except by their own iniquity. For to the just all the evils imposed on them by unjust rulers are not the punishment of crime, but the test of virtue. Therefore the good man, although he is a slave, is free; but the bad man, even if he reigns, is a slave, and that not of one man, but, what is far more grievous, of as many masters as he has vices; of which vices when the divine Scripture treats, it says, For of whom any man is overcome, to the same he is also the bond-slave.

And the final event to himself has been, that, as he rose like a rocket, he fell like the stick.

But the greatest thing by far is to have a command of metaphor. This alone cannot be imparted by another; it is the mark of genius, for to make good metaphors implies an eye for resemblances.

I wrote the books I should have liked to read. That's always been my reason for writing. People won't write the books I want, so I have to do it for myself.

To conceive the good, in fact, is not sufficient; it must be made to succeed among men. To accomplish this less pure paths must be followed.

He tried to recall what he had read about the disease. Figures floated across his memory, and he recalled that some thirty or so great plagues known to history had accounted for nearly a hundred million deaths. But what are a hundred million deaths? When one has served in a war, one hardly knows what a dead man is, after a while. And since a dead man has no substance unless one actually sees him dead, a hundred million corpses broadcast through history are no more than a puff of smoke in the imagination.

Why you fool, it's the educated reader who can be gulled. All our difficulty comes with the others. When did you meet a workman who believes the papers? He takes it for granted that they're all propaganda and skips the leading articles. He buys his paper for the football results and the little paragraphs about girls falling out of windows and corpses found in Mayfair flats. He is our problem. We have to recondition him. But the educated public, the people who read the highbrow weeklies, don't need reconditioning. They're all right already. They'll believe anything.

The invention of printing did away with anonymity, fostering ideas of literary fame and the habit of considering intellectual effort as private property.

Anarchy, in its own nature, is an evil of short duration. The more horrible are the mischiefs it inflicts, the more does it hasten to a close.

The most essential characteristic of scientific technique is that it proceeds from experiment, not from tradition. The experimental habit of mind is a difficult one for most people to maintain; indeed, the science of one generation has already become the tradition of the next...

A comfortable house is a great source of happiness. It ranks immediately after health and a good conscience.

I would really like to slow down the speed of reading with continual punctuation marks. For I would like to be read slowly. (As I myself read.)

The ethical commonplaces of any period include ideas that may have been radical discoveries in a previous age. This is true of modern conceptions of liberty, equality, and democracy, and we are in the midst of ethical debates which will probably result two hundred years hence in a disseminated moral sensibility that people of our time would find very unfamiliar.

When we desire to confine our words, we commonly say they are spoken under the rose.

Democratic socialists are either proletarians who are not yet sufficiently clear about the conditions of the liberation of their class, or they are representatives of the petty bourgeoisie, a class which, prior to the achievement of democracy and the socialist measures to which it gives rise, has many interests in common with the proletariat. It follows that, in moments of action, the communists will have to come to an understanding with these democratic socialists, and in general to follow as far as possible a common policy with them - provided that these socialists do not enter into the service of the ruling bourgeoisie and attack the communists. It is clear that this form of co-operation in action does not exclude the discussion of differences.

Man, being the servant and interpreter of Nature, can do and understand so much and so much only as he has observed in fact or in thought of the course of nature. Beyond this he neither knows anything nor can do anything.

What is asked of a man that he may be able to pray for his enemies? To pray for one's enemies is the hardest thing of all. That is why it exasperates us so much in our present day situation.

If I work incessantly to the last, nature owes me another form of existence when the present one collapses.

At different degrees, everything is pathology, except for indifference.

There always comes a time in history when the person who dares to say that 2+2=4 is punished by death. And the issue is not what reward or what punishment will be the outcome of that reasoning. The issue is simply whether or not 2+2=4.

My form remains one, though the matter in it changes continually. I am, in that respect, like a curve in a waterfall.

Rationality requires a choice among all possible alternative behaviors. In actual behavior, only a very few of all these possible alternatives come to mind.

We will walk on our own feet; we will work with our own hands; we will speak our own minds...A nation of men will for the first time exist, because each believes himself inspired by the Divine Soul which also inspires all men.

The hair is the finest ornament women have. . . . I like women to let their hair fall down their back, it is a most agreeable sight.

"Do not die that we may not die," the dead cry out within you. "We had no time to enjoy the women we desired; be in time, sleep with them! We had no time to turn our thoughts into deeds; turn them into deeds! We had no time to grasp and to crystallize the face of our hope; make it firm!" ... But you must choose with care whom to hurl down again into the chasms of your blood, and whom you shall permit to mount once more into the light and the earth.

Fundamentally we are highly social creatures. We feel a big sense of anomie and discomfort when we are isolated from our fellow human beings. …We seek community in different ways. There's a right wing... and... a left wing version of this.