The basis of science is the empirical method, which uses the senses to build up a picture of the world; but science tells us that our senses have evolved to help us get by, not to show us the world as it is. Science is only a systematic examination of our impressions, and in the end all each of us has left are our own sensations ... The end-result of the empirical method, then, is that each individual is left alone with their own experiences. We can escape this solitude, Balfour suggested, only if we accept that there is a divine mind.

The space of early Greek cosmology was structured by logos - resonant utterance or word.

Just as it sometimes happens that deformed offspring are produced by deformed parents, and sometimes not, so the offspring produced by a female are sometimes female, sometimes not, but male, because the female is as it were a deformed male.

The end of law is not to abolish or restrain, but to preserve and enlarge freedom. For in all the states of created beings, capable of laws, where there is no law there is no freedom.

Use, do not abuse; as the wise man commands. I flee Epictetus and Petronius alike. Neither abstinence nor excess ever renders man happy.

Cure the drunkard, heal the insane, mollify the homicide, civilize the Pawnee, but what lessons can be devised for the debaucher of sentiment?

To a person uninstructed in natural history, his country or sea-side stroll is a walk through a gallery filled with wonderful works of art, nine-tenths of which have their faces turned to the wall.

The genius of democracies is seen not only in the great number of new words introduced but even more in the new ideas they express.

There is no kind of harassment that a man may not inflict on a woman with impunity in civilized societies.

How can one be late to the end of history? A question for today. It is serious because it obliges one to reflect again, as we have been doing since Hegel, on what happens and deserves the name of event, after history; it obliges one to wonder if the end of history is but the end of a certain concept of history.

Toleration is good for all, or it is good for none.

So much of modern mathematical work is obviously on the border-line of logic, so much of modern logic is symbolic and formal, that the very close relationship of logic and mathematics has become obvious to every instructed student. The proof of their identity is, of course, a matter of detail: starting with premisses which would be universally admitted to belong to logic, and arriving by deduction at results which as obviously belong to mathematics, we find that there is no point at which a sharp line can be drawn, with logic to the left and mathematics to the right. If there are still those who do not admit the identity of logic and mathematics, we may challenge them to indicate at what point, in the successive definitions and deductions of Principia Mathematica, they consider that logic ends and mathematics begins. It will then be obvious that any answer must be quite arbitrary.

The most elementary form of rebellion, paradoxically, expresses an aspiration for order.

Better to be despised for too anxious apprehensions, than ruined by too confident a security.

...be tolerant with others and strict with yourself. Remember, nothing belongs to you but your flesh and blood-and nothing else is under your control.

The greatest ideal that man can aspire to is not to be a show-case of virtue, but just to be a genial, likable and reasonable human being.

That, on the whole, if you have got the intrinsic qualities, you have got everything, and the preliminaries will prove attainable; but that if you have got only the preliminaries, you have yet got nothing. A man of real dignity will not find it impossible to bear himself in a dignified manner; a man of real understanding and insight will get to know, as the fruit of his very first study, what the laws of his situation are, and will conform to these.

Setting the mind to remember... involves a continual minimal irradiation of excitement into paths which lead thereto... the continued presence of the thing in the 'fringe' of our consciousness. Letting the thing go involves withdrawal of the irradiation, unconsciousness of the thing, and... obliteration of the paths.

The earth with yellow pears And overgrown with roses wild Upon the pond is bent, And swans divine, With kisses drunk You drop your heads In the sublimely sobering water. But where, with winter come, am I To find, alas, the floweres, and where The sunshine And the shadow of the world? Cold the walls stand And the wordless, in the wind The weathercocks are rattling.

I deplore with you the putrid state into which our newspapers have passed, and the malignity, the vulgarity, & mendacious spirit of those who write for them: and I enclose you a recent sample, the production of a New England judge, as a proof of the abyss of degradation into which we are fallen. These ordures are rapidly depraving the public taste and lessening its relish for sound food. As vehicles of information and a curb on our functionaries, they have rendered themselves useless by forfeiting all title to belief. That this has in a great degree been produced by the violence and malignity of party spirit I agree with you...

Education is the instruction of the intellect in the laws of Nature, under which name I include not merely things and their forces, but men and their ways; and the fashioning of the affections and of the will into an earnest and loving desire to move in harmony with those laws. For me, education means neither more nor less than this. Anything which professes to call itself education must be tried by this standard, and if it fails to stand the test, I will not call it education, whatever may be the force of authority, or of numbers, upon the other side.

Everybody tends to merge his identity with other people at the speed of light. It's called being mass man.

It is error only, and not truth, that shrinks from inquiry.

Tell me what to avoid, what to seek, by what studies to strengthen my tottering mind, how I may rebuff the waves that strike me abeam and drive me from my course, by what means I may be able to cope with all my evils, and by what means I can be rid of the calamities that have plunged in upon me and those into which I myself have plunged. Teach me how to bear the burden of sorrow without a groan on my part, and how to bear prosperity without making others groan; also, how to avoid waiting for the ultimate and inevitable end, and to beat a retreat of my own free will, when it seems proper to me to do so.

Do not be guilty of possessing a library of learned books while lacking learning yourself.

There are 80,000 prostitutes in London alone and what are they, if not bloody sacrifices on the altar of monogamy?

You are in the same manner surrounded with a small circle of persons... full of desire. They demand of you the benefits of desire... You are therefore properly the king of desire. ...equal in this to the greatest kings of the earth... It is desire that constitutes their power; that is, the possession of things that men covet.

We came to a tree which was still bare, and on which the birds were singing out gaily in the morning, without any fear of us. Then stooping over like an Indian on the hunt, my companion placed a pebble in the leather of his sling and stretched it. Obeying his peremptory glance I did the same, with frightful twinges of conscience, vowing firmly that I would shoot when he did. At that very moment the church bells began to sound, mingling with the song of the birds in the sunshine. It was the warning bell that came a half-hour before the main bell. For me it was a voice from heaven. I threw the sling down, scaring the birds away, so that they were safe from my companion's sling, and fled home. And ever afterwards when the bells of Holy Week ring out amidst the leafless trees in the sunshine I remember with moving gratitude how they rang into my heart at that time the commandment: Thou shalt not kill.

The nature of power is such that even those who have not sought it, but have had it forced upon them, tend to acquire a taste for more.

Some decent regulated pre-eminence, some preference (not exclusive appropriation) given to birth, is neither unnatural, nor unjust, nor impolitic.

The criterion which we use to test the genuineness of apparent statements of fact is the criterion of verifiability. We say that a sentence is factually significant to any given person, if, and only if, he knows how to verify the proposition which it purports to express - that is, if he knows what observations would lead him, under certain conditions, to accept the proposition as being true, or reject it as being false.

To become properly acquainted with a truth, we must first have disbelieved it, and disputed against it.

For myself I say deliberately, it is better to have a millstone tied round the neck and be thrown into the sea than to share the enterprises of those to whom the world has turned, and will turn, because they minister to its weaknesses and cover up the awful realities which it shudders to look at.

A philosophy has no private store of knowledge or methods for attaining truth, so it has no private access to good. As it accepts knowledge and principles from those competent in science and inquiry, it accepts the goods that are diffused in human experience. It has no Mosaic or Pauline authority of revelation entrusted to it. But it has the authority of intelligence, of criticism of these common and natural goods.

The electronic age is a world in which causes and effects become almost interchangeable, as in music structures.

Man... whatever the origin of his soul, if it is pure, noble, and lofty, it is a beautiful soul which dignifies the man endowed with it.

It may be confidently asserted that no man chooses evil because it is evil; he only mistakes it for happiness, the good he seeks. And the desire of rectifying these mistakes, is the noble ambition of an enlightened understanding, the impulse of feelings that Philosophy invigorates.

We are interested in others, when they are interested in us.

Skepticism is an exercise in defascination.

If...it be a thing external that causes thy grief, know, that it is not that properly that doth cause it, but thine own conceit and opinion concerning the thing: which thou mayest rid thyself of, when thou wilt.

Mechanical, chemical, and vital Forces form an ascending progression, each including the preceding. Chemical Affinity includes in its nature Mechanical Force, and may often be practically resolved into Mechanical Force. (Thus the ingredients of gunpowder, liberated from their chemical union, exert great mechanical Force : a galvanic battery acting by chemical process does the like.) Vital Forces include in their nature both chemical Affinities and mechanical Forces: for Vital Powers produce both chemical changes, (digestion,) and motions which imply considerable mechanical force, (as the motion of the sap and of the blood.)

Computers were within my sphere of attention, but only computers used as number crunchers. In spite of the "giant brain" metaphor, there is little suggestion in this 1950 talk that the most important application of computers might lie in imitating intelligence symbolically, not numerically.

We produce these representations in and from ourselves with the same necessity with which the spider spins. If we are forced to comprehend all things only under these forms, then it ceases to be amazing that in all things we actually comprehend nothing but these forms. For they must all bear within themselves the laws of number, and it is precisely number which is most astonishing in things. All that conformity to law, which impresses us so much in the movement of the stars and in chemical processes, coincides at bottom with those properties which we bring to things. Thus it is we who impress ourselves in this way

The pride connected with knowing and sensing lies like a blinding fog over the eyes and senses of men, thus deceiving them concerning the value of existence. For this pride contains within itself the most flattering estimation of the value of knowing. Deception is the most general effect of such pride, but even its most particular effects contain within themselves something of the same deceitful character.

If a nation expects to be ignorant and free, in a state of civilization, it expects what never was and never will be. The functionaries of every government have propensities to command at will the liberty and property of their constituents. There is no safe deposit for these but with the people themselves; nor can they be safe with them without information. Where the press is free, and every man able to read, all is safe.