I maintain that in every special natural doctrine only so much science proper is to be met with as mathematics; for... science proper, especially of nature, requires a pure portion, lying at the foundation of the empirical, and based upon à priori knowledge of natural things. ...the conception should be constructed. But the cognition of the reason through construction of conceptions is mathematical. A pure philosophy of nature in general, namely, one that only investigates what constitutes a nature in general, may thus be possible without mathematics; but a pure doctrine of nature respecting determinate natural things (corporeal doctrine and mental doctrine), is only possible by means of mathematics; and as in every natural doctrine only so much science proper is to be met with therein as there is cognition à priori, a doctrine of nature can only contain so much science proper as there is in it of applied mathematics.

A mere nothing, a tiny fibre, something that could never be found by the most delicate anatomy, would have made of Erasmus and Fontenelle two idiots, and Fontenelle himself speaks of this very fact in one of his best dialogues.

Where without any change in circumstances the things held to be just by law are seen not to correspond with the concept of justice in actual practice, such laws are not really just; but wherever the laws have ceased to be advantageous because of a change in circumstances, in that case the laws were for that time just when they were advantageous for the mutual dealings of the citizens, and subsequently ceased to be just when they were no longer advantageous.

I see the situation of man in the world of planetary technicity not as an inexitricable and inescapable destiny, but I see the task of thought precisely in this, that within its own limits it helps man as such achieve a satisfactory relationship to the essence of technicity. National Socialism did indeed go in this direction. Those people, however, were far too poorly equipped for thought to arrive at a really explicit relationship to what is happening today and has been underway for the past 300 years.

I wish it were possible to obtain a single amendment to our Constitution. I would be willing to depend on that alone for the reduction of the administration of our government to the genuine principles of its Constitution; I mean an additional article, taking from the federal government the power of borrowing.

Besides, he who follows another not only discovers nothing but is not even investigating.

In a republic, that paradise of debility, the politician is a petty tyrant who obeys the laws.

The process is so complicated that it offers ever so many occasions for running abnormally.

The whole history of these books is so defective and doubtful that it seems vain to attempt minute enquiry into it: and such tricks have been played with their text, and with the texts of other books relating to them, that we have a right, from that cause, to entertain much doubt what parts of them are genuine. In the New Testament there is internal evidence that parts of it have proceeded from an extraordinary man; and that other parts are of the fabric of very inferior minds. It is as easy to separate those parts, as to pick out diamonds from dunghills

The students of physical science are not unfrequently told that their pursuits unfit them for the estimation of moral probability. And it may be so, for I am afraid that to those who are accustomed to severe reasoning, either in the province of Science or in that of Law, reasoning from 'moral probability' is apt to be regarded as a process of accumulating inconclusive arguments, in the hope that a great heap of them may, at least, look as firm as one good demonstration.

Rules for Demonstrations. I. Not to undertake to demonstrate any thing that is so evident of itself that nothing can be given that is clearer to prove it. II. To prove all propositions at all obscure, and to employ in their proof only very evident maxims or propositions already admitted or demonstrated. III. To always mentally substitute definitions in the place of things defined, in order not to be misled by the ambiguity of terms which have been restricted by definitions.

In the products of the culture industry human beings get into trouble only so that they can be rescued unharmed, usually by representatives of a benevolent collective; and then, in illusory harmony, they are reconciled with the general interest whose demands they had initially experienced as irreconcilable with their own.

There is always someone above you: beyond God Himself rises Nothingness.

I have lived and slept in the same bed with English countesses and Prussian farm women... no woman has excited passions among women more than I have.

Each of us must pay for the slightest damage he inflicts upon a universe created for indifference and stagnation, sooner or later, he will regret not having left it intact.

Near-ubiquitous technological monitoring is a consequence of the decline of cohesive societies that has occurred alongside the rising demand for individual freedom.

This very second has vanished forever, lost in the anonymous mass of the irrevocable. It will never return. I suffer from this and I do not. Everything is unique - and insignificant.

Wealth and poverty do not lie in a person's estate, but in their souls.

There are people with whom everything they consider a means turns mysteriously into an end.

The picture of modern philosophy as centered in epistemology and driven by the desire to ground our representations is so tenacious that some philosophers are prepared to bite the bullet and declare the effort simply wasted. Rorty, for example, finds it easier to reject modern philosophy altogether than to reject the standard accounts of its history. His narrative is more polemical than most, but it's a polemical version of the story told in most philosophy departments in the second half of the twentieth century. The story is one of tortuously decreasing interest. Philosophy, like some people, was prepared to accept boredom in exchange for certainty as it grew to middle age.

This was her finest role and the hardest one to play. Choosing between heaven and a ridiculous fidelity, preferring oneself to eternity or losing oneself in God is the age-old tragedy in which each must play his part.

There is no good father who would want to resemble our Heavenly Father.

One of our fan-coloring biographers, who paints small men as very great, inquired of me lately with real affection too, whether he might consider as authentic, the change of my religion much spoken of in some circles. Now this supposed that they knew what had been my religion before, taking for it the word of their priests, whom I certainly never made the confidants of my creed. My answer was "say nothing of my religion. It is known to my God and myself alone. Its evidence before the world is to be sought in my life; if that has been honest and dutiful to society, the religion which has regulated it cannot be a bad one."

Because the peculiarity of man is that his machinery for reaction on external things has involved an imaginative transcript of these things, which is preserved and suspended in his fancy; and the interest and beauty of this inward landscape, rather than any fortunes that may await his body in the outer world, constitute his proper happiness. By their mind, its scope, quality, and temper, we estimate men, for by the mind only do we exist as men, and are more than so many storage-batteries for material energy. Let us therefore be frankly human. Let us be content to live in the mind.

When one merely states that one has many subscribers and keeps on saying it, then one gets many; just as when one sheep goes to water, the next one also goes, and when it is continually said of a large flock of sheep that they go hither and yon to water, then the rest must also go, so people believe that it must be the demand of the times, that for the sake of use and custom, they must also subscribe.

Scientists believe there is a hierarchy of facts and that among them may be made a judicious choice. They are right, since otherwise there would be no science... One need only open the eyes to see that the conquests of industry which have enriched so many practical men would never have seen the light, if these practical men alone had existed and if they had not been preceded by unselfish devotees who died poor, who never thought of utility, and yet had a guide far other than caprice.As Mach says, these devotees have spared their successors the trouble of thinking.

Get thee behind me, Satan: thou art an offence unto me: for thou savourest not the things that be of God, but those that be of men.

You must do nothing before him, which you would not have him imitate. If any thing escape you, which you would have pass as a fault in him, he will be sure to shelter himself under your example, and shelter himself so as that it will not be easy to come at him, to correct it in him the right way.

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

The vessel, though her masts be firm, beneath her copper bears a worm.

So this is something... we see happening... in the war in Ukraine. A lot of people raise the question, "Why are Ukrainians resisting the Russian invasion as ferociously as they are?" and there's been a little bit of a debate over whether this is due to the fact that Ukrain is democratic, a liberal democracy, and Russia is not, or whether it's simply a fight over sovereignty... I think that that's a false dichotomy because you really don't fight for liberalism as an abstract principle. You fight for it as it is embedded in... your nation... From my... frequent visits to Ukraine... I believe... that's what's really going on, that Ukrainians want their sovereignty, but the reason they want it so desperately is that they want to have a free Ukraine and not Putin's Ukraine, not a... centralized dictatorship, and that's why they're willing to fight so tenaciously.

Coexistent polarities are fundamentally identical.

The fault with Hegel lies much deeper than in his glorification of the Prussian monarchy. He is guilty not so much of being servile as of betraying his highest philosophical ideas. His political doctrine surrenders society to nature, freedom to necessity, reason to caprice. And in so doing, it mirrors the destiny of the social order that falls, while in pursuit of its freedom, into a state of nature far below reason.

Without some redistribution of wealth and power, downward mobility and debilitating poverty will continue to drive people into desperate channels. And without principled opposition to xenophobias from above and below, these desperate channels will produce a cold-hearted and mean-spirited America no longer worth fighting for or living in.

Besides, he who is feared, fears also; no one has been able to arouse terror and live in peace of mind.

That which parents should take care of... is to distinguish between the wants of fancy, and those of nature.

Government is a contrivance of human wisdom to provide for human wants. Men have a right that these wants should be provided for by this wisdom.

This bird sees the white man come and the Indian withdraw, but it withdraws not. Its untamed voice is still heard above the tinkling of the forge... It remains to remind us of aboriginal nature.

I was once being interviewed by Barbara Walters [...] In between two of the segments she asked me [...] "But what would you do if the doctor gave you only six months to live?" I said, "Type faster." This was widely quoted, but the "six months" was changed to "six minutes," which bothered me. It's "six months."

Such abstraction which refuses to accept the given universe of facts as the final context of validation, such "transcending" analysis of the facts in the light of their arrested and denied possibilities, pertains to the very structure of social theory.

There is always something taboo, something repressed, unadmitted, or just glimpsed quickly out of the corner of one's eye because a direct look is too unsettling. Taboos lie within taboos, like the skin of an onion.

Some people steal from others, or defraud them, or enslave them, seizing their product and preventing them from living as they choose, or forcibly exclude others from competing in exchanges. None of these are permissible modes of transition from one situation to another.

And every man, in love or pride, Of his fate is ever wide.

I see too many proofs of the imperfection of human reason, to entertain wonder or intolerance at any difference of opinion on any subject; and acquiesce in that difference as easily as on a difference of feature or form; experience having long taught me the reasonableness of mutual sacrifices of opinion among those who are to act together for any common object, and the expediency of doing what good we can, when we cannot do all we would wish.

Would you really know what philosophy offers to humanity? Philosophy offers counsel.