It is only necessary to make war with five things; with the maladies of the body, the ignorances of the mind, with the passions of the body, with the seditions of the city and the discords of families.

We can not... escape the conclusion that the rule of reasoning by recurrence is irreducible to the principle of contradiction. ...Neither can this rule come to us from experience... This rule, inaccessible to analytic demonstration and to experience, is the veritable type of the synthetic a priori judgment. On the other hand, we can not think of seeing in it a convention, as in some of the postulates of geometry. ...it is only the affirmation of the power of the mind which knows itself capable of conceiving the indefinite repetition of the same act when once this act is possible. The mind has a direct intuition of this power, and experience can only give occasion for using it and thereby becoming conscious of it.

But these labels can only be finite in number. On that score, psychologic time should be discontinuous.

I believe it to be this; that my will, absolutely of itself, and without the intervention of any instrument that might weaken its effect, shall act in a sphere perfectly congenial - reason upon reason, spirit upon spirit; in a sphere to which it does not give the laws of life, of activity, of progress, but which has them in itself, therefore, upon self-active reason. But spontaneous, self-active reason is will. The law of the transcendental world must, therefore, be a Will.

Explore, and explore, and explore. Be neither chided nor flattered out of your position of perpetual inquiry. Neither dogmatise yourself, nor accept another's dogmatism. Why should you renounce your right to traverse the star-lit deserts of truth, for the premature comforts of an acre, house, and barn? Truth also has its roof, and bed, and board. Make yourself necessary to the world, and mankind will give you bread, and if not store of it, yet such as shall not take away your property in all men's possessions, in all men's affections, in art, in nature, and in hope.

When an individual passes from one period of life to another a time comes when he cannot go on in senseless activity and excitement as before, but has to understand that although he has out-grown what before used to direct him, this does not mean that he must live without any reasonable guidance, but rather that he must formulate for himself an understanding of life corresponding to his age, and having elucidated it must be guided by it. And in the same way a similar time must come in the growth and development of humanity.

Alcohol, hashish, prussic acid, strychnine are weak dilutions. The surest poison is time.

A heart without music is like beauty without melancholy.

If I work incessantly to the last, nature owes me another form of existence when the present one collapses.

Men became scientific because they expected law in Nature; and they expected law in Nature because they believed in a Legislator.

Individuality, conceived as a temporal development involves uncertainty, indeterminacy, or contingency. Individuality is the source of whatever is unpredictable in the world.

It is more shameful to distrust our friends than to be deceived by them.

Thus parents, by humouring and cockering them when little, corrupt the principles of nature in their children, and wonder afterwards to taste the bitter waters, when they themselves have poison'd the fountain.

I am an investigator by inclination. I feel a great thirst for knowledge and an impatient eagerness to advance, also satisfaction at each progressive step. There was a time when I thought that all this could constitute the honor of humanity, and I despised the mob, which knows nothing about it. Rousseau set me straight. This dazzling excellence vanishes; I learn to honor men, and would consider myself much less useful than common laborers if I did not believe that this consideration could give all the others a value, to establish the rights of humanity.

To do the opposite of something is also a form of imitation, namely an imitation of its opposite.

Renaissance Italy became a kind of Hollywood collection of sets of antiquity, and the new visual antiquarianism of the Renaissance provided an avenue to power for men of any class.

Of the eternal incorporeal substance nothing is changed, is formed or deformed, but there always remains only that thing which cannot be a subject of dissolution, since it is not possible that it be a subject of composition, and therefore, either of itself or by accident, it cannot be said to die.

[Mortals] say of some temporal suffering, "No future bliss can make up for it," not knowing Heaven, once attained, will work backwards and turn even that agony into a glory. And of some sinful pleasure they say "Let me have but this and I'll take the consequences": little dreaming how damnation will spread back and back into their past and contaminate the pleasure of the sin. Both processes begin even before death.

Why trouble ye the woman? for she hath wrought a good work upon me. For ye have the poor always with you; but me ye have not always. For in that she hath poured this ointment on my body, she did it for my burial. Verily I say unto you, Wheresoever this gospel shall be preached in the whole world, there shall also this, that this woman hath done, be told for a memorial of her.

Poetry is one of the destinies of speech.... One would say that the poetic image, in its newness, opens a future to language.

If you are not already dead, forgive. Rancor is heavy, it is worldly; leave it on earth: die light.

The real question is not whether machines think but whether men do. The mystery which surrounds a thinking machine already surrounds a thinking man.

But greatly his most important culture he had gathered - and this, too, by his own endeavors - from the better part of the district, the religious men; to whom, as to the most excellent, his own nature gradually attached and attracted him. He was religious with the consent of his whole faculties. Without religion he would have been nothing.

As these people are not convicted of forfeiting freedom, they have still a natural, perfect right to it; and the Governments whenever they come should, in justice set them free, and punish those who hold them in slavery.

Tyranny offers relief from the burden of sanity and a licence to enact forbidden impulses of hatred and violence. By acting on these impulses and releasing them in their subjects tyrants give people a kind of happiness, which as individuals they may be incapable of achieving.

While there may exist no more than the normal extent of disagreement about the meaning of particular terms or theses contained in these works, there is a startling degree of divergence about the central view, the basic political attitude of Machiavelli.

Fact be vertuous, or vicious, as Fortune pleaseth.

Though the Earth, and all inferior Creatures be common to all Men, yet every Man has a Property in his own Person. Thus no Body has any Right to but himself.

I resolved from the beginning of my quest that I would not be misled by sentiment and desire into beliefs for which there was no good evidence.

Lassalle. It would be a pity about the fellow because of his great ability, but these goings-on are really too bad. He was always a man one had to keep a devilish sharp eye on and as a real Jew from the Slav border was always to exploit anyone for his own private ends on party pretexts. And then his urge to push his way into polite society, de parvenir, if only for appearance's sake, to disguise the greasy Breslau Jew with all kinds of pomade and paint was always repulsive.

I remind young people everywhere I go, one of the worst things the older generation did was to tell them for twenty-five years "Be successful, be successful, be successful" as opposed to "Be great, be great, be great". There's a qualitative difference.

What do you think of the aspect of the money market? ... This time, by the by, the thing has assumed European dimensions such as have never been seen before, and I don't suppose we'll be able to spend much longer here merely as spectators. The very fact that I've at last got round to setting up house again and sending for my books seems to me to prove that the 'mobilisation' of our persons is AT HAND.

Shallow men believe in luck, believe in circumstances...Strong men believe in cause and effect.

Food probably has a very great influence on the condition of men. Wine exercises a more visible influence, food does it more slowly but perhaps just as surely. Who knows if a well-prepared soup was not responsible for the pneumatic pump or a poor one for a war?

The open society is one that is deemed in principle to embrace all humanity.

We believe that the very beginning and end of salvation, and the sum of Christianity, consists of faith in Christ, who by His blood alone, and not by any works of ours, has put away sin, and destroyed the power of death.

I began with a strong bias toward skepticism. Besides, to tell the truth, I still find occult phenomena a little preposterous and irrelevant. What do they really matter if you place them against the truly great human achievements - against the creative genius of a Michaelangelo, a Beethoven, an Einstein? In that context they seem almost trivial.

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.

He had no failings which were not owing to a noble cause; to an ardent, generous, perhaps an immoderate passion for fame; a passion which is the instinct of all great souls.

As touching the gods, I do not know whether they exist or not, nor how they are featured; for there is much to prevent our knowing: the obscurity of the subject and the brevity of human life.

We should infer in the case of a beautiful dwelling-place that it was built for its owners and not for mice; we ought, therefore, in the same way to regard the universe as the dwelling-place of the gods.

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

Hatred comes from the heart; contempt from the head; and neither feeling is quite within our control.

Undoubtedly we have no questions to ask which are unanswerable. We must trust the perfection of the creation so far, as to believe that whatever curiosity the order of things has awakened in our minds, the order of things can satisfy. Every man's condition is a solution in hieroglyphic to those inquiries he would put. He acts it as life, before he apprehends it as truth.

Announced by all the trumpets of the sky Arrives the snow, and, driving o'er the fields, Seems nowhere to alight: the whited air Hides hills and woods, the river and the heaven, And veils the farm-house at the garden's end.

To say, therefore, that thought cannot happen in an instant, but requires a time, is but another way of saying that every thought must be interpreted in another, or that all thought is in signs.

All those instances to be found in history, whether real or fabulous, of a doubtful public spirit, at which morality is perplexed, reason is staggered, and from which affrighted Nature recoils, are their chosen and almost sole examples for the instruction of their youth.

Nietzsche's problem is how to be a philosopher once he has grasped the finitude of philosophy.

By Thy perfect Intelligence, O MazdaThou didst first create us having bodies and spiritual consciences,And by Thy Thought gave our selves the power of thought, word, and deed.Thus leaving us free to choose our faith at our own will.