This world, the whole of the planet called earth, is the common country of all who live and breathe upon it.

What is the purpose of houses? It is to protect us from the wind and cold of winter, the heat and rain of summer, and to keep out robbers and thieves. Once these ends have been secured, that is all. Whatever does not contribute to these ends should be eliminated.

It is not proper either to have a blunt sword or to use freedom of speech ineffectually. Neither is the sun to be taken from the world, nor freedom of speech from erudition.

You say you are a Calvinist. I am not. I am of a sect by myself, as far as I know.

The first law that ever God gave to man was a law of pure obedience; it was a commandment naked and simple, wherein man had nothing to inquire after, nor to dispute; forasmuch as to obey is the proper office of a rational soul, acknowledging a heavenly superior and benefactor.

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.

I regard utility as the ultimate appeal on all ethical questions; but it must be utility in the largest sense, grounded on the permanent interests of man as a progressive being.

As the years pass, the number of those we can communicate with diminishes. When there is no longer anyone to talk to, at last we will be as we were before stooping to a name.

It is quite true that, to the best of my judgment, the argumentation which applies to brutes holds equally good of men; and, therefore, that all states of consciousness in us, as in them, are immediately caused by molecular changes of the brain-substance. It seems to me that in men, as in brutes, there is no proof that any state of consciousness is the cause of change in the motion of the matter of the organism. If these positions are well based, it follows that our mental conditions are simply the symbols in consciousness of the changes which takes place automatically in the organism; and that, to take an extreme illustration, the feeling we call volition is not the cause of a voluntary act, but the symbol of that state of the brain which is the immediate cause of that act.

People never remember but the computer never forgets.

The more we devote ourselves to observing animals and their behaviour, the more we love them, on seeing how gready they care for their young; in such a context, we cannot even contemplate cruelty to a wolf. Leibnitz put the grub he had been observing back on the tree with its leaf, lest he should be guilty of doing any harm to it. It upsets a man to destroy such a creature for no reason, and this tenderness is subsequently transferred to man.

Most of the propositions that make up the body of administrative theory today share, unfortunately, this defect of proverbs. For almost every principle one can find an equally plausible and acceptable contradictory principle.

During the Vietnam War, which lasted longer than any war we've ever been in -- and which we lost -- every respectable artist in this country was against the war. It was like a laser beam. We were all aimed in the same direction. The power of this weapon turns out to be that of a custard pie dropped from a stepladder six feet high.

The doctrine of the transmigration of souls was indigenous to India and was brought into Greece by Pythagoras.

The rich man... is always sold to the institution which makes him rich.

It is not only when it takes the form of physical addiction that sex is evil. It is also evil when it manifests itself as a way of satisfying the lust for power or the climber's craving for position and social distinction.

Nothing is wholly obvious without becoming enigmatic. Reality itself is too obvious to be true.

I wanted certainty in the kind of way in which people want religious faith. I thought that certainty is more likely to be found in mathematics than elsewhere. But I discovered that many mathematical demonstrations, which my teachers expected me to accept, were full of fallacies, and that, if certainty were indeed discoverable in mathematics, it would be in a new field of mathematics, with more solid foundations than those that had hitherto been thought secure. But as the work proceeded, I was continually reminded of the fable about the elephant and the tortoise. having constructed an elephant upon which the mathematical world could rest, I found the elephant tottering, and proceeded to construct a tortoise to keep the elephant from falling. But the tortoise was no more secure than the elephant, and after some twenty years of very arduous toil, I came to the conclusion that there was nothing more that I could do in the way of making mathematical knowledge indubitable.

All is ephemeral - fame and the famous as well.

No explanation is required for Holy Writing. Whoso speaks truly is full of eternal life, and wonderfully related to genuine mysteries does his Writing appear to us, for it is a Concord from the Symphony of the Universe.

Even those who have renounced Christianity and attack it, in their inmost being still follow the Christian ideal, for hitherto neither their subtlety nor the ardor of their hearts has been able to create a higher ideal of man and of virtue than the ideal given by Christ.

Men fear thought as they fear nothing else on earth - more than ruin, more even than death. Thought is subversive and revolutionary, destructive and terrible; thought is merciless to privilege, established institutions, and comfortable habits; thought is anarchic and lawless, indifferent to authority, careless of the well-tried wisdom of the ages. Thought looks into the pit of hell and is not afraid. It sees man, a feeble speck, surrounded by unfathomable depths of silence; yet it bears itself proudly, as unmoved as if it were lord of the universe. Thought is great and swift and free, the light of the world, and the chief glory of man.

It is not easy for any of us to stop measuring the world against the standard of Europe, but the concept of the multitude requires it of us. It is a challenge. Embrace it.

We can open our hearts to God, but only with Divine help.

The nature of the universe is the nature of things that are. Now, things that are have kinship with things that are from the beginning. Further, this nature is styled Truth; and it is the first cause of all that is true.

Nothing could be more natural than the developement of the passions, nor more striking than the views of the human heart. What delicate struggles! and uncommonly pretty turns of thought!

We now live in a technologically prepared environment that blankets the earth itself. The humanly contrived environment of electric information and power has begun to take precedence over the old environment of "nature." Nature, as it were, begins to be the content of our technology.

The species with eyes appears suddenly, capriciously as it were, and it is this species which changes the environment by creating its visible aspect. The eye does not come into being because it is needed. Just the contrary; because the eye appears it can henceforth be applied as a serviceable instrument. Each species builds up its stock of useful habits by selecting among, and taking advantage of, the innumerable useless actions which a living being performs out of sheer exuberance.

The hero of my tale, whom I love with all the power of my soul, whom I have tried to portray in all his beauty, who has been, is, and will be beautiful, is Truth.

Our labour preserves us from three great evils -- weariness, vice, and want.

Color is not so much a visual as a tactile medium.

Historically, the errors committed by a truly revolutionary movement are infinitely more fruitful than the infallibility of the cleverest Central Committee.

I realized that the difference that I saw between things was the same thing as their unity, because differences (borders, lines, surfaces, boundaries) don't really divide things from each other at all, they join them together, because all boundaries are held in common.

The wiser nations are, the more public spirit they possess, the more perfect their political constitution, the fewer constitutional laws they have, for these laws are only props, and a building only needs props when it has become out of plumb or when it has been violently shaken by an external force. The most perfect constitution of antiquity was without contradiction that of Sparta, and Sparta has not left us a single line of its public law. It justly boasted of having written its laws only in the hearts of its children.

The belief in unity that has fuelled so many utopian dreams is an effort to reconcile the irreconcilable that ends in repression. Berlin suggests we renounce this venerable faith, and learn how to live with intractable conflict.

The gesture that divides madness is the constitutive one, not the science that grows up in the calm that returns after the division has been made.

Applied knowledge in the Renaissance had to take the form of translation of the auditory into visual terms, of the plastic into retinal form.

Perhaps even more than constituted authority, it is social uniformity and sameness that harass the individual most. His very "uniqueness," "separateness" and "differentiation" make him an alien, not only in his native place, but even in his own home. Often more so than the foreign born who generally falls in with the established. In the true sense one's native land, with its back ground of tradition, early impressions, reminiscences and other things dear to one, is not enough to make sensitive human beings feel at home. A certain atmosphere of "belonging," the consciousness of being "at one" with the people and environment, is more essential to one's feeling of home. This holds good in relation to one's family, the smaller local circle, as well as the larger phase of the life and activities commonly called one's country. The individual whose vision encompasses the whole world often feels nowhere so hedged in and out of touch with his surroundings than in his native land.

I would rather be a devil in alliance with truth, than an angel in alliance with falsehood.

I have wanted them to have this simple definition to read again and again so they know: Feminism is a movement to end sexism, sexist exploitation, and oppression.

It has become almost a cliché to remark that nobody boasts of ignorance of literature, but it is socially acceptable to boast ignorance of science and proudly claim incompetence in mathematics.

Consider, for example, the state of Science generally, in Europe, at this period. It is admitted, on all sides, that the Metaphysical and Moral Sciences are falling into decay, while the Physical are engrossing, every day, more respect and attention. In most of the European nations there is now no such thing as a Science of Mind; only more or less advancement in the general science, or the special sciences, of matter.

Time begins to emit a scent when it gains duration; when it is given a narrative or deep tension; when it gains depth and breadth, even space.

The great event of this period, the great trauma, is this decline of strong referentials, these death pangs of the real and of the rational that open onto an age of simulation. Whereas so many generations, and particularly the last, lived in the march of history, in the euphoric or catastrophic expectation of a revolution-today one has the impression that history has retreated, leaving behind it an indifferent nebula, traversed by currents, but emptied of references. It is into this void that the phantasms of a past history recede, the panoply of events, ideologies, retro fashions-no longer so much because people believe in them or still place some hope in them, but simply to resurrect the period when at least there was history, at least there was violence (albeit fascist), when at least life and death were at stake.

The capacity to give one's attention to a sufferer is a very rare and difficult thing; it is almost a miracle; it is a miracle. Nearly all those who think they have this capacity do not possess it. Warmth of heart, impulsiveness, pity are not enough.