In life, in true life, there can be nothing better than what is. Wanting something different than what is, is blasphemy.

Man cannot be wicked without being evil, nor evil without being degraded, nor degraded without being punished, nor punished without being guilty. In short ... there is nothing so intrinsically plausible as the theory of original sin.

I feel awe of the gods, I love, I revere, I venerate them, and in short have precisely the same feelings towards them as one would have towards kind masters or teachers or fathers or guardians or any beings of that sort.

One could count on one's fingers the number of scientists in the entire world who have a general idea of the history and development of their own particular science; there is not one who is really competent as regards sciences other than his own. As science forms an indivisible whole, one may say that there are no longer, strictly speaking, any scientists, but only drudges doing scientific work. . . .

And truly... if men could be persuaded to mind more the advancement of natural philosophy than that of their own reputations, it were not, methinks, very uneasy to make them sensible, that one of the considerablest services, that they could do mankind, were to set themselves diligently and industriously to make experiments and collect observations, without being over-forward to establish principles and axioms, believing it uneasy to erect such theories, as are capable to explicate all the phænomena of nature, before they have been able to take notice of the tenth part of those phænomena, that are to be explicated.

Ideas, aspirations, and objectives that, by their content, transcend the established universe of discourse and action are either repelled or reduced to terms of this universe.

One who liberates his country by killing a tyrant is to be praised and rewarded.

It's not that there are no differences between human and non-human animals, any more than there are no differences between black people and white people, freeborn citizens and slaves, men and women, Jews and gentiles, gays or heterosexuals. The question is rather: are they morally relevant differences? This matters because morally catastrophic consequences can ensue when we latch on to a real but morally irrelevant difference between sentient beings.

This also is a beautiful circumstance, that they referred every thing to Pythagoras, and called it by his name, and that they did not ascribe to themselves the glory of their own inventions, except very rarely.

This type of man who is devoted to the study of wisdom is always most unlucky in everything, and particularly when it comes to procreating children; I imagine this is because Nature wants to ensure that the evils of wisdom shall not spread further throughout mankind.

The mathematician is born, not made.

So long as antimilitarists propose no substitute for war's disciplinary function, no moral equivalent of war, analogous, as one might say, to the mechanical equivalent of heat, so long they fail to realize the full inwardness of the situation.

Love in animals, has not for its only object animals of the same species, but extends itself farther, and comprehends almost every sensible and thinking being. A dog naturally loves a man above his own species, and very commonly meets with a return of affection.

Is there anything we cannot contrive to call the demands of the times, and is there anything that does not acquire a certain prestige by being the demand of the times? But for decisive religious categories to become the demand for the times is eo ipso a contradiction. “The times” is too abstract a category to be able as claimant to demand the decisive religious categories that belong specifically to individuality and particularity; loud collective demands en mass for what can be shared only by the single individual in particularity, in solitariness, in silence, cannot be made.

Erudition can produce foliage without bearing fruit.

When the intensity of emotional conviction subsides, a man who is in the habit of reasoning will search for logical grounds in favour of the belief which he finds in himself.

Understand that all the evils from which you suffer, you yourselves cause by yielding to the suggestions by which emperors, kings, members of parliament, governors, officers, capitalists, priests, authors, artists, and all who need this fraud of patriotism in order to live upon your labour, deceive you!

In public, as well as in private expences, great wealth may, perhaps, frequently be admitted as an apology for great folly.

There's only one corner of the universe you can be certain of improving, and that's your own self.

All persons shall have full and free liberty of religious opinion; nor shall any be compelled to frequent or maintain any religious institution.

He who knows himself properly can very soon learn to know all other men. It is all reflection.

Much reading has brought upon us a learned barbarism.

Do we write books so that they shall merely be read? Don't we also write them for employment in the household? For one that is read from start to finish, thousands are leafed through, other thousands lie motionless, others are jammed against mouseholes, thrown at rats, others are stood on, sat on, drummed on, have gingerbread baked on them or are used to light pipes.

The de-eroticization of the world, a companion to its disenchantment ... seems to result from a combination of causes-our democratic regime and its tendencies toward leveling and self-protection, a reductionist-materialist science that inevitably interprets eros as sex, and the atmosphere generated by "the death of God" and of the subordinate god, Eros.

Truth never turns to rebuke falsehood; her own straightforwardness is the severest correction.

...it is the peculiar and perpetual error of the human understanding to be more moved and excited by affirmatives than by negatives...

There are no solutions, only cowardice masquerading as such.

My poor opinion is, that the closest connexion between Great Britain and Ireland, is essential to the well being, I had almost said, to the very being, of the two Kingdoms. ... I think indeed that Great Britain would be ruined by the separation of Ireland; but, as there are degrees even in ruin, it would fall the most heavily on Ireland. By such a separation Ireland would be the most completely undone Country in the world; the most wretched, the most distracted and, in the end, the most desolate part of the habitable Globe.

Find time still to be learning somewhat good, and give up being desultory.

Is there really someone who, searching for a group of wise and sensitive persons to regulate him for his own good, would choose that group of people that constitute the membership of both houses of Congress?

Things essentially incorporeal, because they are more excellent than all body and place, are every where, not with interval, but impartibly. Things essentially incorporeal are not locally present with bodies but are present with them when they please; by verging towards them so far as they are naturally adapted so to verge. They are not, however, present with them locally, but through habitude, proximity, and alliance. Things essentially incorporeal, are not present with bodies, by hypostasis and essence; for they are not mingled with bodies. But they impart a certain power which is proximate to bodies, through verging towards them. For tendency constitutes a certain secondary power proximate to bodies.

The great work of the present for every man, and every organization of men, who would improve social conditions, is the work of education - the propagation of ideas. It is only as it aids this that anything else can avail. And in this work every one who can think may aid - first by forming clear ideas himself, and then by endeavoring to arouse the thought of those with whom he comes in contact.

In an autobiography one must surely be allowed to boast, just for fun. I have, at a range of twenty feet, shot the tobacco out of a cigarette and left the paper intact. At a range of thirty feet, I have split a target, edge towards me, with an air pistol. I am also the world's champion in a game called "You Are the Target," in which anyone better than I would be dead. The game is to shoot an arrow straight up and see how near to you it can be allowed to land. You have to watch its fall very carefully, but I have had it hit the ground exactly between my feet. Of course, there were no witnesses. Had there been, they would forcefully have discouraged the experiment. I was using a fifty-five pound bow.

Remember that all is opinion.

It is easier for the prince to make friends of those men who were contented under the former government, and are therefore his enemies, than of those who, being discontented with it, were favourable to him and encouraged him to seize it. 

When my ability to reason shows me that the suffering of another being is very similar to my own suffering and matters just as much to that other being as my own suffering matters to me, then my reason is showing me something that is undeniably true. ... The perspective on ourselves that we get when we take the point of view of the universe also yields as much objectivity as we need if we are to find a cause that is worthwhile in a way that is independent of our own desires. The most obvious such cause is the reduction of pain and suffering, wherever it is to be found.

But, one will say, if raw experience can not legitimatize reasoning by recurrence, is it so of experiment aided by induction? We see successively that a theorem is true of the number 1, of the number 2, of the number 3 and so on; the law is evident, we say, and it has the same warranty as every physical law based on observations, whose number is very great but limited. But there is an essential difference. Induction applied to the physical sciences is always uncertain, because it rests on the belief in a general order of the universe, an order outside of us. Mathematical induction, that is, demonstration by recurrence, on the contrary, imposes itself necessarily, because it is only the affirmation of a property of the mind itself.

Eternal vigilance is the price of knowledge.

Instruction, that mysterious communing of Wisdom with Ignorance, is no longer an indefinable tentative process, requiring a study of individual aptitudes, and a perpetual variation of means and methods, to attain the same end; but a secure, universal, straightforward business, to be conducted in the gross, by proper mechanism.

When people come to me saying they want to kill themselves, I tell them, "What's your rush? You can kill yourself any time you like. So calm down. Suicide is a positive act." And they do calm down.

One whose intentions and thoughts are cultivated will disregard wealth and nobility. One whose greatest concern is for the Way and righteousness will take lightly kings and dukes. It is simply that when one examines oneself on the inside, external goods carry little weight. A saying goes, "The gentleman makes things his servants. The petty man is servant to things.

The analysis achieves its end when the patient is able to recognize, in the Real of his symptom, the only support of his being. That is how we must read Freud's 'wo we war, soll ich werden:' you, the subject, must identify yourself with the place where your symptom already was; in its pathological particularity you must recognize the element which gives consistency to your being.

Pithy sentences are like sharp nails which force truth upon our memory.