Poets and priests were one in the beginning, and they only separated in later times. But the real poet is always a priest, just as the real priest always remains a poet.

I hope I may claim in the present work to have made it probable that the laws of arithmetic are analytic judgments and consequently a priori. Arithmetic thus becomes simply a development of logic, and every proposition of arithmetic a law of logic, albeit a derivative one. To apply arithmetic in the physical sciences is to bring logic to bear on observed facts; calculation becomes deduction.

Our words tend to conceal what is private and particular in our impressions, and to make us believe that different people live in a common world to a greater extent than is in fact the case.

We reason deeply, when we forcibly feel.

Haven't people learned yet that the time of superficial intellectual games is over, that agony is infinitely more important than syllogism, that a cry of despair is more revealing than the most subtle thought, and that tears always have deeper roots than smiles?

Perhaps there is one chain [of inference] leading from the mental and the physical to a common source. It is conceivable in the abstract that if mental phenomena derive from the properties of matter at all, these may be identical at some level with nonphysical properties from which physical phenomena also derive. ...If there were such properties, they would be discoverable only by explanatory inference from both mental and physical phenomena. ... There would be properties of matter that were not physical from which the mental properties of organic systems were derived. This could still be called panpsychism.

Endless brooding over a question undermines you as much as a dull pain.

His power to adore is responsible for all his crimes: a man who loves a god unduly forces other men to love his god, eager to exterminate them if they refuse.

When a sixth of the population of a nation which has undertaken to be the refuge of liberty are slaves, and a whole country is unjustly overrun and conquered by a foreign army, and subjected to military law, I think that it is not too soon for honest men to rebel and revolutionize. What makes this duty the more urgent is the fact that the country so overrun is not our own, but ours is the invading army.

If I were asked to summarize as briefly as possible my vision of things, to reduce it to its most succinct expression, I should replace words with an exclamation point, a definitive !

I observe that a very large portion of the human race does not believe in God and suffers no visible punishment in consequence. And if there were a God, I think it very unlikely that he would have such an uneasy vanity as to be offended by those who doubt his existence.

I have always thought that clarity is a form of courtesy that the philosopher owes; moreover, this discipline of ours considers it more truly a matter of honor today than ever before to be open to all minds ... This is different from the individual sciences which increasingly [interpose] between the treasure of their discoveries and the curiosity of the profane the tremendous dragon of their closed terminology.

The respect inspired by the link between man and the reality alien to this world can make itself evident to that part of man which belongs to the reality of this world. The reality of this world is necessity. The part of man which is in this world is the part which is in bondage to necessity and subject to the misery of need. The one possibility of indirect expression of respect for the human being is offered by men's needs, the needs of the soul and of the body, in this world.

All became so jealous of the rights of their own personality that they did their very utmost to curtail and destroy them in others, and made that the chief thing in their lives. Slavery followed, even voluntary slavery; the weak eagerly submitted to the strong, on condition that the latter aided them to subdue the still weaker. Then there were saints who came to these people, weeping, and talked to them of their pride, of their loss of harmony and due proportion, of their loss of shame. They were laughed at or pelted with stones.

A scientist can hardly meet with anything more undesirable than to have the foundations give way just as the work is finished. I was put in this position by a letter from Mr. Bertrand Russell when the work was nearly through the press.

The life of money-making is one undertaken under compulsion, and wealth is evidently not the good we are seeking; for it is merely useful and for the sake of something else.

The spirit of Poesy is the morning light, which makes the Statue of Memnon sound.

The pursuit of mathematics is a divine madness of the human spirit.

Even the most wretched individual of our present society could not exist and develop without the cumulative social efforts of countless generations. Thus the individual, his freedom and reason, are the products of society, and not vice versa: society is not the product of individuals comprising it; and the higher, the more fully the individual is developed, the greater his freedom - and the more he is the product of society, the more does he receive from society and the greater his debt to it.

Were the ends of a person already explicit, there would be no room for development, for growth, for life; and consequently there would be no personality. The mere carrying out of predetermined purposes is mechanical. This remark has an application to the philosophy of religion. It is that genuine evolutionary philosophy, that is, one that makes the principle of growth a primordial element of the universe, is so far from being antagonistic to the idea of a personal creator, that it is really inseparable from that idea; while a necessitarian religion is in an altogether false position and is destined to become disintegrated. But a pseudo-evolutionism which enthrones mechanical law above the principle of growth is at once scientifically unsatisfactory, as giving no possible hint of how the universe has come about, and hostile to all hopes of personal relations to God.

The pleasure is only for a little moment, and it [passes] like a dream, and a man at the end thereof finds death through knowing it.

There are necessities and impossibilities in reality which do not obtain in fiction, any more than the law of gravity to which we are subject controls what is represented in a picture. ... It is the same with pure good; for a necessity as strong as gravity condemns man to evil and forbids him any good, or only within the narrowest limits and laboriously obtained and soiled and adulterated with evil. ... The simplicity which makes the fictional good something insipid and unable to hold the attention becomes, in the real good, an unfathomable marvel.

Never accept compliments or criticism from someone you wouldn't take advice from.

A slight sound at evening lifts me up by the ears, and makes life seem inexpressibly serene and grand. It may be Uranus, or it may be in the shutter.

To understand a name you must be acquainted with the particular of which it is a name.

It would be worth the while to look closely into the eye which has been open and seeing at such hours, and in such solitudes, its dull, yellowish, greenish eye. Methinks my own soul must be a bright invisible green.

A mind of slow apprehension is therefore not necessarily a weak mind. The one who is alert with abstractions is not always profound, he is more often very superficial.

The animals themselves are incapable of demanding their own liberation, or of protesting against their condition with votes, demonstrations, or boycotts. Human beings have the power to continue to oppress other species forever, or until we make this planet unsuitable for living beings. Will our tyranny continue, proving that morality counts for nothing when it clashes with selfinterest, as the most cynical of poets and philosophers have always said? Or will we rise to the challenge and prove our capacity for genuine altruism by ending our ruthless exploitation of the species in our power, not because we are forced to do so by rebels or terrorists, but because we recognize that our position is morally indefensible? The way in which we answer this question depends on the way in which each one of us, individually, answers it.

"And your education! Is not that also social, and determined by the social conditions under which you educate, by the intervention, direct or indirect, of society, by means of schools, etc.? The Communists have not invented the intervention of society in education; they do but seek to alter the character of that intervention, and to rescue education from the influence of the ruling class."

To rank the effort above the prize may be called love.

That the sun will not rise to-morrow is no less intelligible a proposition, and implies no contradiction, than the affirmation, that it will rise.

Strictly speaking, the mass, as a psychological fact, can be defined without waiting for individuals to appear in mass formation. In the presence of one individual we can decide whether he is "mass" or not. The mass is all that which sets no value on itself - good or ill - based on specific grounds, but which feels itself "just like everybody," and nevertheless is not concerned about it; is, in fact, quite happy to feel itself as one with everybody else.

To be old is a glorious thing when one has not unlearned what it means to begin, this old man had perhaps first learned it thoroughly in old age.

Much learning does not teach understanding.

Life is bristling with thorns, and I know no other remedy than to cultivate one's garden.

The fundamental maxim of those who stand at the head of this Age, and therefore the principle of the Age, is this,-to accept nothing as really existing or obligatory, but that which they can understand and clearly comprehend. With regard to this fundamental principle, as we have now declared and adopted it without farther definition or limitation, this third Age is precisely similar to that which is to follow it, the fourth, or age of Reason as Science,-and by virtue of this similarity prepares the way for it. Before the tribunal of Science, too, nothing is accepted but the Conceivable. Only in the application of the principle there is this difference between the two Ages,-that the third, which we shall shortly name that of Empty Freedom, makes its fixed and previously acquired conceptions the measure of existence; while the fourth-that of Science-on the contrary, makes existence the measure, not of its acquired, but of its desiderated beliefs.

The pursuit of knowledge is, I think, mainly actuated by love of power. And so are all advances in scientific technique. In politics, also, a reformer may have just as strong a love of power as a despot. It would be a complete mistake to decry love of power altogether as a motive. Whether you will be led by this motive to actions which are useful, or to actions which are pernicious, depends upon the social system, and upon your capacities.

There are no solutions, only cowardice masquerading as such.

We have seen how it is originally language which works on the construction of concepts, a labor taken over in later ages by science. Just as the bee simultaneously constructs cells and fills them with honey, so science works unceasingly on this great columbarium of concepts, the graveyard of perceptions.

When I see someone in anxiety, I say to myself, What can it be that this fellow wants? For if he did not want something that was outside of his control, how could he still remain in anxiety?

Our elucidations of the preliminary concept of phenomenology show that its essential character does not consist in its actuality as a philosophical "movement." Higher than actuality stands possibility. We can understand phenomenology solely by seizing upon it as a possibility.

First of all, principles should be general. That is, it must be possible to formulate them without use of what would be intuitively recognized as proper names, or rigged definite descriptions.

It appears, accordingly, from the experience of all ages and nations, I believe, that the work done by freemen comes cheaper in the end than that performed by slaves.

Gottlob Frege created modern logic including "for all," "there exists," and rules of proof. Leibniz and Boole had dealt only with what we now call "propositional logic" (that is, no "for all" or "there exists"). They also did not concern themselves with rules of proof, since their aim was to reach truth by pure calculation with symbols for the propositions. Frege took the opposite track: instead of trying to reduce logic to calculation, he tried to reduce mathematics to logic, including the concept of number.

Weisinger, a couple of years ago, made up the following story: "Isaac Asimov was asked how Superman could fly faster than the speed of light, which was supposed to be an absolute limit. To this Asimov replied, 'That the speed of light is a limit is a theory; that Superman can travel faster than light is a fact.'"

I had obtained some distinction, and felt myself of some importance, before the desire of distinction and of importance had grown into a passion: and little as it was which I had attained, yet having been attained too early, like all pleasures enjoyed too soon, it had made me blasé and indifferent to the pursuit. Thus neither selfish nor unselfish pleasures were pleasures to me. And there seemed no power in nature sufficient to begin the formation of my character anew, and create in a mind now irretrievably analytic, fresh associations of pleasure with any of the objects of human desire.

On the stage on which we are observing it, - Universal History - Spirit displays itself in its most concrete reality.

For no fact is so simple we believe it at first sight, And there is nothing that exists so great or marvellous That over time mankind does not admire it less and less.