To love truth for truth's sake is the principal part of human perfection in this world, and the seed-plot of all other virtues.

There is no science apart from the general. It may even be said that the very object of the exact sciences is to spare us these direct verifications.

In place of the bourgeois society, with its classes and class antagonisms, shall we have an association, in which the free development of each is the condition for the free development of all.

I look forward to a future when acts of war shall be formally outlawed as between civilized peoples. All these beliefs of mine put me firmly into the anti-military party. But I do not believe that peace either ought to be or will be permanent on this globe, unless the states, pacifically organized, preserve some of the old elements of army-discipline. A permanently successful peace-economy cannot be a simple pleasure-economy. In the more or less socialistic future toward which mankind seems drifting we must still subject ourselves collectively to those severities which answer to our real position upon this only partly hospitable globe. We must make new energies and hardihoods continue the manliness to which the military mind so faithfully clings.

Scientists work from models acquired through education and through subsequent exposure to the literature often without quite knowing or needing to know what characteristics have given these models the status of community paradigms.

I found Randi likable and plausible; the only thing that bothered me was the sweeping and intense nature of his skepticism. He was obviously working from the premise that all paranormal phenomena, without exception, are fakes or delusions. He seemed to take to take it for granted that all of us - there were also two women present - shared his opinions, and he made jovial, disparaging remarks about psychics and other such weirdos. I began to get the uncomfortable feeling of a Jew who has accidentally walked into a Nazi meeting, or a Jehovah's Witness at a convention of militant atheists. As a supposedly scientific psychic investigator, Randi struck me as being oddly fixed in his opinions.

By 1204, the only place where the entire body of Greek learning existed, still intact, was Constantinople. As a result of the crusaders' conquest, however, Constantinople was ruthlessly pillaged and destroyed and almost all the great treasures of ancient Greek learning were lost forever. It is because of that sack, for instance, that we have only seven plays left out of the better than one hundred written by Sophocles. The tragedy of 1204 can never be undone and for all of time, only bits and pieces of the marvelous Greek world can be known to us.

Lysander said, "Where the lion's skin will not reach, it must be pieced with the fox's."

Appearances to the mind are of four kinds. Things either are what they appear to be; or they neither are, nor appear to be; or they are, and do not appear to be; or they are not, and yet appear to be. Rightly to aim in all these cases is the wise man's task.

In the part of this universe that we know there is great injustice, and often the good suffer, and often the wicked prosper, and one hardly knows which of those is the more annoying.

The single spirit doth simultaneously temper the whole together; this is the single soul of all things; all are filled with God.

Men must have rights before they can have equal rights. Each man has a right to use the world because he is here and wants to use the world. The equality of this right is merely a limitation arising from the presence of others with like rights. Society, in other words, does not grant, and cannot equitably withhold from any individual, the right to the use of land. That right exists before society and independently of society, belonging at birth to each individual, and ceasing only with his death. Society itself has no original right to the use of land. What right it has with regard to the use of land is simply that which is derived from and is necessary to the determination of the rights of the individuals who compose it. That is to say, the function of society with regard to the use of land only begins where individual rights clash, and is to secure equality between these clashing rights of individuals.

It's so much easier to pray for a bore than to go and see one.

The virtues are not poured into us, they are natural. Seek, and you will find them: neglect, and you will lose them.

He who created us without our help will not save us without our consent.

All things are subject to decay and change.

Every man would like to be God, if it were possible; some few find it difficult to admit the impossibility.

Knowledge is employed in the service of the necessity of life and primarily in the service of the instinct of personal preservation. The necessity and this instinct have created in man the organs of knowledge and given them such capacity as they possess. Man sees, hears, touches, tastes and smells that which it is necessary for him to see, hear, touch, taste and smell in order to preserve his life. The decay or loss of any of these senses increases the risks with which his life is environed, and if it increases them less in the state of society in which we are actually living, the reason is that some see, hear, touch, taste and smell for others. A blind man, by himself and without a guide, could not live long. Society is an additional sense; it is the true common sense.

Plants are Children of the Earth; we are Children of the Æther. Our Lungs are properly our Root; we live, when we breathe; we begin our life with breathing.

Cato said the best way to keep good acts in memory was to refresh them with new.

Once we can see how this question of freedom of the will has been vitiated by post-romantic philosophy, with its inbuilt tendency to laziness and boredom, we can also see how it came about that existentialism found itself in a hole of its own digging, and how the philosophical developments since then have amounted to walking in circles round that hole.

The "dreams of youth" have become a proverb. That organisations, early rich, fall far short of their promise has been repeated to satiety. But is it extraordinary that it should be so? For do we ever utilise this heroism? Look how it lives upon itself and perishes for lack of food. We do not know what to do with it. We had rather that it should not be there. Often we laugh at it. Always we find it troublesome. Look at the poverty of our life! Can we expect anything else but poor creatures to come out of it?

Good tests kill flawed theories; we remain alive to guess again.

I have always taken as the standard of the mode of teaching and writing, not the abstract, particular, professional philosopher, but universal man, that I have regarded man as the criterion of truth, and not this or that founder of a system, and have from the first placed the highest excellence of the philosopher in this, that he abstains, both as a man and as an author, from the ostentation of philosophy, i.e., that he is a philosopher only in reality, not formally, that he is a quiet philosopher, not a loud and still less a brawling one.

France wanted to make proselytes to her opinions, and turn every government in the world into a republic. If every government was against her, it was because she had declared herself hostile to every government. He knew of nothing to which this strange republic could be compared, but to the system of Mahomet, who with the koran in one hand, and a sword in the other, held out the former to the acceptance of mankind, and with the latter compelled them to adopt it as their creed. The koran which France held out, was the declaration of the rights of man and universal fraternity; and with the sword she was determined to propagate her doctrines, and conquer those whom she could not convince.

We must learn how to imitate Cicero from Cicero himself. Let us imitate him as he imitated others.

The dream is the small hidden door in the deepest and most intimate sanctum of the soul, which opens to that primeval cosmic night that was soul long before there was conscious ego and will be soul far beyond what a conscious ego could ever reach.

If we don't address the genetic causes of suffering (physical and mental) we will find ourselves in 500 years enjoying material abundance via nanotech, living in a perfect democracy, colonizing space, and still sitting around wondering "Why are we miserable so much of the time? Why can't we all just get along? Why are we not all happy?"

Nothing exists! Neither life nor death. I watch mind and matter hunting each other like two nonexistent erotic phantasms - merging, begetting, disappearing - and I say: "This is what I want!" I know now: I do not hope for anything. I do not fear anything, I have freed myself from both the mind and the heart, I have mounted much higher, I am free. This is what I want. I want nothing more. I have been seeking freedom.

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.

If someone were to expound that godliness is to belong to childhood in the temporal sense and thus dwindle and die with the years as childhood does, is to be a happy frame of mind that cannot be preserved but only recollected; if someone were to expound that repentance as a weakness of old age accompanies the decline of one's powers, when the senses are dulled, when sleep no longer strengthens but increases lethargy-this would be ungodliness and foolishness.

It is impossible to imagine a more dramatic and horrifying combination of scientific triumph with political and moral failure than has been shown to the world in the destruction of Hiroshima. From the scientific point of view, the atomic bomb embodies the results of a combination of genius and patience as remarkable as any in the history of mankind.

Much of the obscurity of our effort so far against terrorism originates in the now official idea that the enemy is evil and that we are (therefore) good, which is the precise mirror image of the official idea of the terrorists.

If religion has put forward the proposition that we are all of us sinners, I set another against it: we are all of us perfect! Because, in each moment, we are all we can be, and never need to be more.

Freedom of person, securing every one from imprisonment, or other bodily restraint, but by the laws of the land. This is effected by the well-known law of habeas corpus.

In this theater of man's life it is reserved only for God and angels to be lookers on.

Wealth is a great sin in the eyes of God. Poverty is a great sin in the eyes of man.

Because machines could be made progressively more and more efficient, Western man came to believe that men and societies would automatically register a corresponding moral and spiritual improvement. Attention and allegiance came to be paid, not to Eternity, but to the Utopian future. External circumstances came to be regarded as more important than states of mind about external circumstances, and the end of human life was held to be action, with contemplation as a means to that end. These false and historically, aberrant and heretical doctrines are now systematically taught in our schools and repeated, day in, day out, by those anonymous writers of advertising copy who, more than any other teachers, provide European and American adults with their current philosophy of life. And so effective has been the propaganda that even professing Christians accept the heresy unquestioningly and are quite unconscious of its complete incompatibility with their own or anybody else's religion.

The first duty of a man is the seeking after and the investigation of truth.

I did not know the way in which, among the ordinary English, the absence of interest in things of an unselfish kind, except occasionally in a special thing here and there, and the habit of not speaking to others, nor much even to themselves, about the things in which they do feel interest, causes both their feelings and their intellectual faculties to remain undeveloped, or to develope themselves only in some single and very limited direction; reducing them, considered as spiritual beings, to a kind of negative existence.

The public is a ferocious beast: one must chain it up or flee from it.

If conquest constitutes a natural right on the part of the few, the many have only to gather sufficient strength in order to acquire the natural right of reconquering what has been taken from them.

Man is a goal-seeking animal. His life only has meaning if he is reaching out and striving for goals.

When you get over an infatuation, to fall for someone ever again seems so inconceivable that you imagine no one, not even a bug, that is not mired in disappointment.

Since, of desires some are natural and necessary; others natural, but not necessary; and others neither natural nor necessary, but the offspring of false judgment; it must be the office of temperance to gratify the first class, as far as nature requires: to restrain the second within the bounds of moderation; and, as to the third, resolutely to oppose, and, if possible, entirely repress them.

I have read descriptions of Paradise that would make any sensible person stop wanting to go there.

The discourse on the Text should itself be nothing other than text, research, textual activity, since the Text is that social space which leaves no language safe, outside, nor any subject of the enunciation in position as judge, master, analyst, confessor, decoder. The theory of the Text can coincide only with a practice of writing.