So that in the first place, I put for a general inclination of all mankind a perpetual and restless desire of Power after power, that ceaseth only in Death. And the cause of this is not always that a man hopes for a more intensive delight than he has already attained to, or that he cannot be content with a moderate power: but because he cannot assure the power and means to live well, which he hath present, without the acquisition of more.

Science does not rest upon solid bedrock. The bold structure of its theories arises, as it were, above a swamp. It is like a building erected on piles. The piles are driven down from above into the swamp, but not down to any natural or 'given' base; and if we stop driving the piles deeper, it is not because we have reached firm ground. We simply stop when we are satisfied that the piles are firm enough to carry the structure, at least for the time being.

I assert(1) There is no method of discovering a scientific theory.(2) There is no method of ascertaining the truth [i.e., verification] of a scientific hypothesis...(3) There is no method of ascertaining whether a hypothesis is 'probable', in the sense of the probability calculus.

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?

Yes, to seek power that's vain and never grantedand for it to suffer hardship and endless pain:this is to heave and strain to push uphilla boulder, that still from the very top rolls backand bounds and bounces down to the bare, broad field.

I seem to myself, among civilised men, an intruder, a troglodyte enamored of decrepitude, plunged into subversive prayers.

Europeans are awakening more and more to a sense that beasts have rights, in proportion as the strange notion is being gradually overcome and outgrown, that the animal kingdom came into existence solely for the benefit and pleasure of man. This view, with the corollary that non-human living creatures are to be regarded merely as things, is at the root of the rough and altogether reckless treatment of them, which obtains in the West.

Lives matter in the sense that they assume physical form within the sphere of appearance; lives matter because they are to be valued equally.

When I play with my cat, who knows if I am not a pastime to her more than she is to me?

I must write it all out, at any cost. Writing is thinking. It is more than living, for it is being conscious of living.

Wipe out the imagination. Stop pulling the strings. Confine thyself to the present. ...Divide and distribute every object into the causal [formal] and the material. ...Let the wrong which is done by a man stay there where the wrong was done.

There is but one mode by which man can possess in perpetuity all the happiness which his nature is capable of enjoying, - that is by the union and co-operation of all for the benefit of each. Union and co-operation in war obviously increase the power of the individual a thousand fold. Is there the shadow of a reason why they should not produce equal effects in peace; why the principle of co-operation should not give to men the same superior powers, and advantages, (and much greater) in the creation, preservation, distribution and enjoyment of wealth?

There is geometry in the humming of the strings, there is music in the spacing of the spheres.

We are all attached to the throne of the Supreme Being by a supple chain that restrains us without enslaving us. Nothing is more admirable in the universal order of things than the action of free beings under the divine hand. Freely slaves, they act voluntarily and necessarily at the same time; they really do what they will, but without being able to disturb the general plans. Each of these beings occupies the centre of a sphere of activity whose diameter varies according to the will of the Eternal Geometer, who can extend, restrict, check, or direct the will without altering its nature.

I have stated that the constitutions of our several States vary more or less in some particulars. But there are certain principles in which all agree, and which all cherish as vitally essential to the protection of the life, liberty, property, and safety of the citizen:

The government of the United States have no idea of paying their debt in a depreciated medium, and... in the final liquidation of the payments which shall have been made, due regard will be had to an equitable allowance for the circumstance of depreciation.

Social and economic inequalities are to satisfy two conditions: first, they are to be attached to positions and offices open to all under conditions of fair equality of opportunity; and second, they are to be to the greatest benefit to the least-advantaged members of society.

If you see a man who is unterrified in the midst of dangers, untouched by desires, happy in adversity, peaceful amid the storm, who looks down upon men from a higher plane, and views the gods on a footing of equality, will not a feeling of reverence for him steal over you, will you not say: "This quality is too great and too lofty to be regarded as resembling this petty body in which it dwells? A divine power has descended upon that man."

Virtue runs no risk of becoming contemptible by being exposed to view, and it is better to be despised for simplicity than to be tormented by continual hypocrisy.

How many of us are able to distinguish between the odors of noon and midnight, or of winter and summer, or of a windy spell and a still one? If man is so generally less happy in the cities than in the country, it is because all these variations and nuances of sight and smell and sound are less clearly marked and lost in the general monotony of gray walls and cement pavements.

If a man knows what it is right to do, he does not require a formal reason. And a person that has been thus trained, either possesses these first principles already, or can easily acquire them.

It is only through science and art that civilization is of value. Some have wondered at the formula: science for its own sake; an yet it is as good as life for its own sake, if life is only misery; and even as happiness for its own sake, if we do not believe that all pleasures are of the same quality...Every act should have an aim. We must suffer, we must work, we must pay for our place at the game, but this is for seeing's sake; or at the very least that others may one day see.

Acquire the contemplative way of seeing how all things change into one another, and constantly attend to it, and exercise thyself about this part [of philosophy]. For nothing is so much adapted to produce magnanimity. ...But as to what any man shall say or think about him, or do against him, he never even thinks of it, being himself contented with these two things: with acting justly in what he now does, and being satisfied with what is now assigned to him; and he lays aside all distracting and busy pursuits, and desires nothing else than to accomplish the straight course through the law, and by accomplishing the straight course to follow God.

Yes - you, you alone must pay for everything because you turned up like this, because I'm a scoundrel, because I'm the nastiest, most ridiculous, pettiest, stupidest, and most envious worm of all those living on earth who're no better than me in any way, but who, the devil knows why, never get embarrassed, while all my life I have to endure insults from every louse - that's my fate. What do I care that you do not understand any of this?

We are firm believers in the maxim that for all right judgment of any man or thing it is useful, nay, essential, to see his good qualities before pronouncing on his bad.

Our moral virtues benefit mainly other people; intellectual virtues, on the other hand, benefit primarily ourselves; therefore the former make us universally popular, the latter unpopular.

The truth is always in the minority, and the minority is always stronger than the majority, because as a rule the minority is made up of those who actually have an opinion, while the strength of the majority is illusory, formed of that crowd which has no opinion - and which therefore the next moment (when it becomes clear that the minority is the stronger) adopts the latter's opinion, which now is in the majority, i.e. becomes rubbish by having the whole retinue and numerousness on its side, while the truth is again in a new minority.

He said they that were serious in ridiculous matters would be ridiculous in serious affairs.

There is a kind of selective memory that afflicts men when they view the past. They see the good and overlook the evil.

A true account of the actual is the rarest poetry, for common sense always takes a hasty and superficial view.

The fact that labour is external to the worker, i.e., it does not belong to his intrinsic nature; that in his work, therefore he does not affirm himself but denies himself, does not feel content but unhappy, does not develop freely his physical and mental energy but mortifies his body and his mind. The worker therefore only feels himself outside his work, and in his work feels outside himself.

In the welter of conflicting fanaticisms, one of the few unifying forces is scientific truthfulness, by which I mean the habit of basing our beliefs upon observations and inferences as impersonal, and as much divested of local and temperamental bias, as is possible for human beings.

Pure Mathematics is the class of all propositions of the form "p implies q," where p and q are propositions containing one or more variables, the same in the two propositions, and neither p nor q contains any constants except logical constants. And logical constants are all notions definable in terms of the following: Implication, the relation of a term to a class of which it is a member, the notion of such that, the notion of relation, and such further notions as may be involved in the general notion of propositions of the above form. In addition to these, mathematics uses a notion which is not a constituent of the propositions which it considers, namely the notion of truth.

We are sorely deficient in talking with each other and listening to each other. We lack mobility, criticism and self-criticism. We incline to doctrinism. What makes it worse is that so many people do not really want to think. They want only slogans and obedience. They ask no questions and they give no answers, except by repeating drilled-in phrases. They can only assert and obey, neither probe nor apprehend. Thus they cannot be convinced, either. How shall we talk with people who will not go where others probe and think, where men seek independence in insight and conviction?

A Dialogue between two Infants in the womb concerning the state of this world, might handsomely illustrate our ignorance of the next, whereof methinks we yet discourse in Plato's Den, and are but Embryon Philosophers.

Because of your unbelief: for verily I say unto you, If ye have faith as a grain of mustard seed, ye shall say unto this mountain, Remove hence to yonder place; and it shall remove; and nothing shall be impossible unto you. Howbeit this kind goeth not out but by prayer and fasting.

If reason (I mean abstract reason, derived from inquiries a priori) be not alike mute with regard to all questions concerning cause and effect, this sentence at least it will venture to pronounce, That a mental world, or universe of ideas, requires a cause as much, as does a material world, or universe of objects; and, if similar in its arrangement, must require a similar cause. For what is there in this subject, which should occasion a different conclusion or inference? In an abstract view, they are entirely alike; and no difficulty attends the one supposition, which is not common to both of them.

My main theme is the extension of the nervous system in the electric age, and thus, the complete break with five thousand years of mechanical technology. This I state over and over again. I do not say whether it is a good or bad thing. To do so would be meaningless and arrogant.

We all labour against our own cure, for death is the cure of all diseases.

Long before physics or psychology were born, pain disintegrated matter, and affliction the soul.

Bold ideas, unjustified anticipations, and speculative thought, are our only means for interpreting nature: our only organon, our only instrument, for grasping her. And we must hazard them to win our prize. Those among us who are unwilling to expose their ideas to the hazard of refutation do not take part in the scientific game.

Have patience awhile; slanders are not long-lived. Truth is the child of time; erelong she shall appear to vindicate thee.

Wherefore think ye evil in your hearts? For whether is easier, to say, Thy sins be forgiven thee; or to say, Arise, and walk? But that ye may know that the Son of man hath power on earth to forgive sins, (then saith he to the sick of the palsy,) Arise, take up thy bed, and go unto thine house.