There are three principal means of acquiring knowledge available to us: observation of nature, reflection, and experimentation. Observation collects facts; reflection combines them; experimentation verifies the result of that combination. Our observation of nature must be diligent, our reflection profound, and our experiments exact. We rarely see these three means combined; and for this reason, creative geniuses are not common.

Scientific writing is abhorrently stylized and places a premium on poor quality.

What does the future, that half of time, matter to the man who is infatuated with eternity?

My conduct must be the best proof, the moral proof, of my supreme desire; and if I do not end by convincing myself, within the bounds of the ultimate and irremediable uncertainty of the truth of what I hope for, it is because my conduct is not sufficiently pure. Virtue, therefore, is not based upon dogma, but dogma upon virtue, and it is not faith that creates martyrs but martyrs who create faith. There is no security or repose - so far as security and repose are obtainable in this life, so essentially insecure and unreposeful - save in conduct that is passionately good.

It is the season of the Kronia, during which the god allows us to make merry. But, my dear friend, as I have no talent for amusing or entertaining I must methinks take pains not to talk mere nonsense." "But, Caesar, can there be anyone so dull and stupid as to take pains over jesting? I always thought that such pleasantries were a relaxation of the mind and a relief from pains and cares." "Yes, and no doubt your view is correct, but that is not how the matter strikes me. For by nature I have no turn for raillery, or parody, or raising a laugh."

Patriotism ruins history.

There is no version of primeval history, preceding the discoveries of modern science, that is as rational and as inspiring as that of the first eleven chapters of the Book of Genesis.

How does the light of a star set out and plunge into black eternity in its immortal course? The star dies, but the light never dies; such also is the cry of freedom. Out of the transient encounter of contrary forces which constitute your existence, strive to create whatever immortal thing a mortal may create in this world - a Cry. And this Cry, abandoning to the earth the body which gave it birth, proceeds and labors eternally.

The work of each individual contributes to a totality and so becomes an undying part of the totality. That totality of human lives - past and present and to come - forms a tapestry that has been in existence now for many thousands of years and has been growing more elaborate and, on the whole, more beautiful in all that time. Even the Spacers are an offshoot of the tapestry and they, too, add to the elaborateness and beauty of the pattern. An individual life is one thread in the tapestry and what is one thread compared to the whole?

Only geometry can hand us the thread [which will lead us through] the labyrinth of the continuum's composition, the maximum and the minimum, the infinitesimal and the infinite; and no one will arrive at a truly solid metaphysic except he who has passed through this [labyrinth].

Labor is a commodity, like any other, and its price is therefore determined by exactly the same laws that apply to other commodities. In a regime of big industry or of free competition - as we shall see, the two come to the same thing - the price of a commodity is, on the average, always equal to its cost of production. Hence, the price of labor is also equal to the cost of production of labor. But, the costs of production of labor consist of precisely the quantity of means of subsistence necessary to enable the worker to continue working, and to prevent the working class from dying out. The worker will therefore get no more for his labor than is necessary for this purpose; the price of labor, or the wage, will, in other words, be the lowest, the minimum, required for the maintenance of life.

Sex is no longer a serious taboo. Teenagers sometimes know more about it than adults.

For already, sometime, I have been a boy and a girl, a shrub, a bird, and a silent fish in the sea.

The vitality of thought is in adventure. Ideas won't keep. Something must be done about them. When the idea is new, its custodians have fervor, live for it, and, if need be, die for it.

The gallery in which the reporters sit has become a fourth estate of the realm.

Pyrrhus said, "If I should overcome the Romans in another fight, I were undone."

Our patriotism comes straight from the Romans. This is why French children are encouraged to seek inspiration for it in Corneille. It is a pagan virtue, if these two words are compatible. The word pagan, when applied to Rome, early possesses the significance charged with horror which the early Christian controversialists gave it. The Romans really were an atheistic and idolatrous people; not idolatrous with regard to images made of stone or bronze, but idolatrous with regard to themselves. It is this idolatry of self which they have bequeathed to us in the form of patriotism.

No one has yet added up all the heavy, stress-filled workdays as well as the hundreds, perhaps thousands, of lives that are wasted to produce the world's amusements. It is for this reason that "amusements" are not so amusing.

On another possible world or another planet a word might be associated with much the same stereotype and much the same criteria as our term 'water', but it might designate XYZ and not H₂O. At least this could happen in a prescientific era. And it would not follow that XYZ was water; it would only follow that XYZ could look like water, taste like water, etc. What 'water' refers to depends on the actual nature of the paradigms, not just on what is in our heads.

From the moment when labour can no longer be converted into capital, money, or rent, into a social power capable of being monopolized, i.e., from the moment when individual property can no longer be transformed into bourgeois property, into capital, from that moment, you say individuality vanishes.

A democratic government is the only one in which those who vote for a tax can escape the obligation to pay it.

The fundamental terms of a system of Nomenclature may "be conveniently borrowed from casual or arbitrary circumstances.

Functional communication is only the outer layer of the one- dimensional universe in which man is trained to target-to translate the negative into the positive so that he can continue to function, reduced but fit and reasonably well. The institutions of free speech and freedom of thought do not hamper the mental coordination with the established reality. What is taking place is a sweeping redefinition of thought itself, of its function and content. The coordination of the individual with his society reaches into those layers of the mind where the very concepts are elaborated which are designed to comprehend the established reality. These concepts are taken from the intellectual tradition and translated into operational terms-a translation which has the effect of reducing the tension between thought and reality by weakening the negative power of thought.

The only method of learning to bear with dignity the vicissitudes of fortune is to recall the catastrophes of others.

There is no correlation between material and spiritual misery. Only to the lowest and dullest levels of society can one preach the formula for all human happiness and wholeness as the well-named "animal ideal," a well-being that is little better than bovine. Hegel rightly wrote that the epochs of material well-being are blank pages in the history book, and Toynbee has shown that the challenge to mankind of environmentally and spiritually harsh and problematic conditions is often the incentive that awakens the creative energies of civilization. In some cases, it is not paradoxical to say that the man of good will should try to make life difficult for his neighbor! It is a commonplace that all the higher virtues attenuate and atrophy under easy conditions, when man is not forced to prove himself in some way; and in the final analysis it does not matter in such situations if a good number fall away and are lost through natural selection.

If, when a man writes a poem or commits a murder, the bodily movements involved in his act result solely from physical causes, it would seem absurd to put up a statue to him in the one case and to hang him in the other.

It is precisely the essential feature of egoism that it does not apprehend the full value of the isolated self. The egoist sees himself only with regard to the others, as a member of society who wishes to possess and acquire more than the others. Self-directedness or other-directedness have no essential bearing on the specific quality of love or hatred. These acts are different in themselves, quite independently of their direction.

It comes, it comes!' they sang. 'Sleepers awake! It comes, it comes, it comes.' One dreadful glance over my shoulder I essayed - not long enough to see (or did I see?) the rim of the sunrise that shoots Time dead with golden arrows and puts to flight all phantasmal shapes. Screaming, I buried my face in the fold of the Teacher's robe. 'The morning! The morning!' I cried. 'I am caught by the morning and I am a ghost.'

That Vulcan gave arrows unto Apollo and Diana the fourth day after their Nativities, according to Gentile Theology, may pass for no blind apprehension of the Creation of the Sun and Moon, in the work of the fourth day.

Childhood may be defined as the age of play; therefore some children are never young, and some adults are never old.

What is more subjective is not necessarily more private. In general it is intersubjectively available. I assume that the intersubjective ideas of experience, of action, and of the self are in some sense public or common property. That is why the problems of mind and body, free will, and personal identity are not just problems about one's own case.

Anger, as we have said, is eager to punish; and that such a desire should exist in man's peaceful breast is least of all according to his nature; for human life is founded on benefits and harmony and is bound together into an alliance for the common help of all, not by terror, but by love towards one another.

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

...it won't just be the quality and quantity of consciousness in the world that will be transformed in the post-Darwinian Transition. As (post-)humanity emerges from the neurochemical Dark Ages, enriched dopaminergic function in particular may sharpen the sheer intensity and meaningfulness of every moment of conscious existence. For a generation whose lifetimes span both modes of awareness, it will be as if they had just woken up. They will feel they had hitherto been sleep-walking through life in a twilit stupor. Thereafter their former mundane and minimal existence may be recalled only as some kind of zombified trance-state whose nature they were physiologically incapable of recognising...

The noble simplicity in the works of nature only too often originates in the noble shortsightedness of him who observes it.

When one is gripped by excruciating physical pain, one is always shocked at just how frightful it can be.

If I used to ask myself, over a coffin, "what good did it do the occupant to be born?" I now put the same question about anyone alive.

The idea of an all-powerful divine Being is present everywhere, unconsciously if not consciously, because it is an archetype. There is in the psyche some superior power, and if it is not consciously a god, it is the "belly" at least, in St. Paul's words. I therefore consider it wiser to acknowledge the idea of God consciously, for, if we do not, something else is made God, usually something quite inappropiate and stupid such as only an "enlightened" intellect could hatch forth.

Architecture worth great attention. As we double our numbers every 20 years we must double our houses. Besides we build of such perishable materials that one half of our houses must be rebuilt in every space of 20 years. So that in that term, houses are to be built for three fourths of our inhabitants. It is then among the most important arts: and it is desireable to introduce taste into an art which shews so much.

In matters of style, swim with the current: in matters of principle, stand like a rock.

Need and struggle are what excite and inspire us; our hour of triumph is what brings the void. Not the Jews of the captivity, but those of the days of Solomon's glory are those from whom the pessimistic utterances in our Bible come.

One common false conclusion is that because someone is truthful and upright towards us he is spreading the truth. Thus the child believes his parents' judgements, the Christian believes the claims of the church's founders. Likewise, people do not want to admit that all those things which men defended with the sacrifice of their lives and happiness in earlier centuries were nothing but errors.

The Mass is the greatest blasphemy of God, and the highest idolatry upon earth, an abomination the like of which has never been in Christendom since the time of the Apostles.

Love all men, even your enemies; love them, not because they are your brothers, but that they may become your brothers. Thus you will ever burn with fraternal love, both for him who is already your brother and for your enemy, that he may by loving become your brother. Even he that does not as yet believe in Christ, love him, and love him with fraternal love. He is not yet thy brother, but love him precisely that he may be thy brother.

If I had followed the multitude, I should not have studied philosophy.

When speaking of the new testament that you should read all the histories of Christ, as well of those whom a council of ecclesiastics have decided for us to be Pseudo-evangelists, as those they named Evangelists. Because these Pseudo-evangelists pretended to inspiration as much as the others, and you are to judge their pretensions by your own reason, & not by the reason of those ecclesiastics. Most of these are lost. There are some however still extant, collected by Fabricius which I will endeavor to get & send you.

What will be the attitude of communism to existing nationalities? The nationalities of the peoples associating themselves in accordance with the principle of community will be compelled to mingle with each other as a result of this association and thereby to dissolve themselves, just as the various estate and class distinctions must disappear through the abolition of their basis, private property.

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.