To shoot down a European is to kill two birds with one stone, to destroy an oppressor and the man he oppresses at the same time.

Whether you can observe a thing or not depends on the theory which you use. It is the theory which decides what can be observed.

Error is the force that welds men together; truth is communicated to men only by deeds of truth. Only deeds of truth, by introducing light into the conscience of each individual, can dissolve the cohesion of error, and detach men one by one from the mass united together by the cohesion of error.

Throw moderation to the winds, and the greatest pleasures bring the greatest pains.

Every intellectual revolution which has ever stirred humanity into greatness has been a passionate protest against inert ideas. Then, alas, with pathetic ignorance of human psychology, it has proceeded by some educational scheme to bind humanity afresh with inert ideas of its own fashioning.

Is the child to be considered as an individuality, or as an object to be moulded according to the whims and fancies of those about it? This seems to me to be the most important question to be answered by parents and educators. And whether the child is to grow from within, whether all that craves expression will be permitted to come forth toward the light of day; or whether it is to be kneaded like dough through external forces, depends upon the proper answer to this vital question.

Only the feeble resign themselves to final death and substitute some other desire for the longing for personal immortality. In the strong the zeal for perpetuity overrides the doubt of realizing it, and their superabundance of life overflows upon the other side of death.

One reason an egalitarian approach to the value of life is important is that it draws from ideals of radical democracy at the same time that it enters into ethical considerations about how best to practice nonviolence. The institutional life of violence will not be brought down by a prohibition, but only by a counter-institutional ethos and practice.

The slave is sold once and for all; the proletarian must sell himself daily and hourly. The individual slave, property of one master, is assured an existence, however miserable it may be, because of the master's interest. The individual proletarian, property as it were of the entire bourgeois class which buys his labor only when someone has need of it, has no secure existence. This existence is assured only to the class as a whole.

It's not worth the bother of killing yourself, since you always kill yourself too late.

In order to cease being a doubtful case, one has to cease being, that's all.

Doubt must be no more than vigilance, otherwise it can become dangerous.

To believe in God is to yearn for His existence and, furthermore, it is to act as if He did exist.

Final causes or intentions are the torment of modern philosophy, which neglects nothing to get rid of them. From this, among other things, comes its great axiom: nature creates only individuals. Indeed, since all classification supposes order, this philosophy has denied classes to deny order. In order to establish this marvellous reasoning, it fixes its suspicious eyes on the differences between beings to dispense itself from turning them to their similarities. It does not want to recognize that nuances between classes and individuals constitute another order, and that diversity in resemblance supposes intention more visibly than mere resemblance.

Some words shall herein be capitalised when used, not as vernacular, but as terms defined. Thus an "idea" is the substance of an actual unitary thought or fancy; but "Idea," nearer Plato's idea of ἰδέα, denotes anything whose Being consists in its mere capacity for getting fully represented, regardless of any person's faculty or impotence to represent it.

It is not by prayer and humility that you cause things to go as you wish, but by acquiring a knowledge of natural laws.

Do not shorten the morning by getting up late, or waste it in unworthy occupations or in talk; look upon it as the quintessence of life, as to a certain extent sacred. Evening is like old age: we are languid, talkative, silly. Each day is a little life: every waking and rising a little birth, every fresh morning a little youth, every going to rest and sleep a little death.

There is an innate anxiety which supplants in us both knowledge and intuition.

Never any good came out of female domination. God created Adam master and lord of living creatures, but Eve spoiled it all.

We are not yet speaking about equality if we have not yet spoken about equal grievability, or the equal attribution of grievability. Grievability is a defining feature of equality. Those whose grievability is not assumed are those who suffer inequality-unequal value.

To believe in a God means to understand the question about the meaning of life. To believe in a God means to see that the facts of the world are not the end of the matter. To believe in God means to see that life has a meaning.

Life consists with wildness. The most alive is the wildest. Not yet subdued to man, its presence refreshes him.

Science is the knowledge of Consequences, and dependence of one fact upon another: by which, out of that we can presently do, we know how to do something else when we will, or the like, another time.

If the debt which the banking companies owe be a blessing to anybody, it is to themselves alone, who are realizing a solid interest of eight or ten per cent on it. As to the public, these companies have banished all our gold and silver medium, which, before their institution, we had without interest, which never could have perished in our hands, and would have been our salvation now in the hour of war; instead of which they have given us two hundred million of froth and bubble, on which we are to pay them heavy interest, until it shall vanish into air... We are warranted, then, in affirming that this parody on the principle of 'a public debt being a public blessing,' and its mutation into the blessing of private instead of public debts, is as ridiculous as the original principle itself. In both cases, the truth is, that capital may be produced by industry, and accumulated by economy; but jugglers only will propose to create it by legerdemain tricks with paper.

How abundantly do spiritual beings display the powers that belong to them! We look for them, but do not see them; we listen to, but do not hear them; yet they enter into all things, and there is nothing without them.

Nothing great has great beginnings.

That most knowing of persons - gossip.

The wise will determine from the gravity of the case; the irritable from sensibility to oppression; the high-minded from disdain and indignation at abusive power in unworthy hands.

I have never had the least sympathy with the a priori reasons against orthodoxy, and I have by nature and disposition the greatest possible antipathy to all the atheistic and infidel school. Nevertheless I know that I am, in spite of myself, exactly what the Christian would call, and, so far as I can see, is justified in calling, atheist and infidel.

No theory, no ready-made system, no book that has ever been written will save the world. I cleave to no system. I am a true seeker.

I have seen something of the project of M. de St. Pierre, for maintaining a perpetual peace in Europe. I am reminded of a device in a cemetery, with the words: Pax perpetua; for the dead do not fight any longer: but the living are of another humor; and the most powerful do not respect tribunals at all. 

The blame rests with the government. Why do they not put adulterers to death? Then I would not need to give such advice. Between two evils one is always the lesser, in this case allowing the adulterer to remarry in a distant land in order to avoid fornication . . .

The many are mean; only the few are noble.

But the exceedingly foul deed of Onan, the basest of wretches, follows. Onan must have been a malicious and incorrigible scoundrel. This is a most disgraceful sin. It is far more atrocious than incest and adultery. We call it unchastity, yes a Sodomitic sin. For Onan goes in to her; that is, he lies with her and copulates, and when it comes to the point of insemination, spills the semen, lest the woman conceive. Surely at such a time the order of nature established by God in procreation should be followed. Accordingly, it was a most disgraceful crime to produce semen and excite the woman, and to frustrate her at that very moment.

With the conception that the Revolution was only a means of securing political power, it was inevitable that all revolutionary values should be subordinated to the needs of the Socialist State; indeed, exploited to further the security of the newly acquired governmental power.

In the electric age, when our central nervous system is technologically extended to involve us in the whole of mankind and to incorporate the whole of mankind in us, we necessarily participate, in depth, in the consequences of our every action. It is no longer possible to adopt the aloof and dissociated role of the literate Westerner.

No matter how various the subject matter I write on, I was a science-fiction writer first and it is as a science-fiction writer that I want to be identified.

All who are not lunatics are agreed about certain things. That it is better to be alive than dead, better to be adequately fed than starved, better to be free than a slave. Many people desire those things only for themselves and their friends; they are quite content that their enemies should suffer. These people can only be refuted by science: Humankind has become so much one family that we cannot ensure our own prosperity except by ensuring that of everyone else. If you wish to be happy yourself, you must resign yourself to seeing others also happy.

The social product grows from year to year. Who is now the true creator of this surplus value which grows wildly and beyond any measure? Who can afford to figure out the profit yielded causally adequate by this immense wealth and the series of economic miracles? In concrete terms: who is the legitimate distributor of the social product and who actually assesses the shares in practical life? As long as the issue is about value, all such questions must above all be formulated as economic questions.

But after these, Pythagoras changed that philosophy, which is conversant about geometry itself, into the form of a liberal doctrine, considering its principles in a more exalted manner; and investigating its theorems immaterially and intellectually; who likewise invented a treatise of such things as cannot be explained in geometry, and discovered the constitution of the mundane figures.

The World and Life are one. Physiological life is of course not "Life". And neither is psychological life. Life is the world. Ethics does not treat of the world. Ethics must be a condition of the world, like logic. Ethics and Aesthetics are one.

People don't want to be understood - I mean not completely. It's too destructive. Then they haven't anything left.

Man has three ways of acting wisely. First, on meditation; that is the noblest. Secondly, on imitation; that is the easiest. Thirdly, on experience; that is the bitterest.

For a long time there have been no true sovereigns, monarchs by divine right capable of wielding sword and scepter, and symbols of a higher human ideal. More than a century ago, Juan Donoso Cortés stated that no kings existed capable of proclaiming themselves as such except "by the will of the nation," adding that, even if any had existed, they would not have been recognized. The few monarchies still surviving are notoriously impotent and empty, while the traditional nobility has lost its essential character as a political class and any existential prestige and rank along with it. Its current representatives may still interest our contemporaries when put on the same plane as film actors and actresses, sport heroes and opera stars, and when through some private, sentimental, or scandalous chance, they serve as fodder for magazine articles.

Nothing can be preserved that is not good.

Eloquence may strike the ear, but the language of poverty strikes the heart; the first may charm like music, but the second alarms like a knell.