Like Fichte, Brentano had one simple and powerful insight. He declared: there is a basic difference between a mental and physical act. if I slip on the snow and fall flat on my back, that is an unintentional physical act. But there is no such thing as an unintentional mental act. When I think, I have to think about something; I have to focus my mind on it. You could compare all mental acts (thinking, willing, loving, trying to remember something) to a searchlight beam stabbing into the darkness. There is an element of will, of 'intentionality,' in all mental activity. So it is quite inaccurate to compare mental activity to chemistry, or to a kind of drifting, like leaves on a stream. It flows purposefully or not at all.

All metaphysical theories are inconclusively vulnerable to positivist attack.

You shall have joy, or you shall have power, said God; you shall not have both.

So long as man remains free he strives for nothing so incessantly and so painfully as to find some one to worship.

No social co-operation under the division of labour is possible when some people or unions of people are granted the right to prevent by violence and the threat of violence other people from working. When enforced by violence, a strike in vital branches of production or a general strike are tantamount to a revolutionary destruction of society.

There is no science apart from the general. It may even be said that the very object of the exact sciences is to spare us these direct verifications.

So near at hand is freedom, and is anyone still a slave?

People trifle with love. Now, I deny that love is a strong passion. Fear is the strong passion; it is with fear that you must trifle, if you wish to taste the intensest joys of living.

Anarchy, in its own nature, is an evil of short duration. The more horrible are the mischiefs it inflicts, the more does it hasten to a close.

I react like everyone else, even like those I most despise; but I make up for it by deploring every action I commit, good or bad.

Why do you lack the strength to escape the obligation to breathe?

Commit no lustfulness, so that harm and regret may not reach thee from thine own actions.

I have entered on an enterprise which is without precedent, and will have no imitator. I propose to show my fellows a man as nature made him, and this man shall be myself.

Men do not care how nobly they live, but only how long, although it is within the reach of every man to live nobly, but within no man's power to live long.

There are a thousand hacking at the branches of evil to one who is striking at the root, and it may be that he who bestows the largest amount of time and money on the needy is doing the most by his mode of life to produce that misery which he strives in vain to relieve.

Big industry has brought all the people of the Earth into contact with each other, has merged all local markets into one world market, has spread civilization and progress everywhere and has thus ensured that whatever happens in civilized countries will have repercussions in all other countries. It follows that if the workers in England or France now liberate themselves, this must set off revolution in all other countries - revolutions which, sooner or later, must accomplish the liberation of their respective working class.

The superior man, extensively studying all learning, and keeping himself under the restraint of the rules of propriety, may thus likewise not overstep what is right.

All large political questions are at bottom economic questions.

I believe that political power also exercises itself through the mediation of a certain number of institutions that seem to have nothing in common with political power, that have the appearance of being independent, but are not.

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

In an ever-changing, incomprehensible world the masses had reached the point where they would, at the same time, believe everything and nothing, think that everything was possible and that nothing was true. [...] under such conditions, one could make people believe the most fantastic statements one day, and trust that if the next day they were given irrefutable proof of their falsehood, they would take refuge in cynicism; instead of deserting the leaders who had lied to them, they would protest that they had known all along that the statement was a lie and would admire the leaders for their superior tactical cleverness.

When a person inflates his own importance, he does not see his own sins; and his sins get bigger right along with him.

The Book had in a high degree excited us to self-activity, which is the best effect of any book.

Even the most insensitive hit song enthusiast cannot always escape the feeling that the child with a sweet tooth comes to know in the candy store.

Even if there never have been actions arising from such pure sources, what is at issue here is not whether this or that happened; that, instead, reason by itself and independently of all appearances commands what ought to happen; that, accordingly, actions of which the world has perhaps so far given no example, and whose very practicability might be very much doubted by one who bases everything on experience, are still inflexibly commanded by reason ... because ... duty ... lies, prior to all experience, in the idea of a reason determing the will by means of apriori grounds.

Physiology does not teach us how to digest, nor logic how to discourse, nor esthetics how to feel beauty or express it, nor ethics how to be good. And indeed it is well if they do not teach us how to be hypocrites; for pedantry, whether it be pedantry of logic, or of esthetics, or of ethics, is at bottom nothing but hypocrisy.

A wrongdoer is often a man who has left something undone, not always one who has done something.

All the cases in which means and ends are external to one another are non-esthetic.

I would say act like a man of thought and think like a man of action.

Knowledge, that tendeth but to satisfaction, is but as a courtesan, which is for pleasure, and not for fruit or generation.

I forsook the company and the dinner-parties, the port-wine and champagne of the middle-classes, and devoted my leisure-hours almost exclusively to the intercourse with plain working men; I am both glad and proud of having done so. Glad, because thus I was induced to spend many a happy hour in obtaining a knowledge of the realities of life-many an hour, which else would have been wasted in fashionable talk and tiresome etiquette; proud, because thus I got an opportunity of doing justice to an oppressed and calumniated class of men who with all their faults and under all the disadvantages of their situation, yet command the respect of every one but an English money-monger.

Every artist was first an amateur.

What is it that distinguishes man from animals? It is not his upright posture. That was present in the apes long before the brain began to develop. Nor is it the use of tools. It is something altogether new, a previously unknown quality: self-awareness. Animals, too, have awareness. They are aware of objects; they know this is one thing and that another. But when the human being as such was born he had a new and different consciousness, a consciousness of himself; he knew that he existed and that he was something different, something apart from nature, apart from other people, too. He experienced himself. He was aware that he thought and felt. As far as we know, there is nothing analogous to this anywhere in the animal kingdom. That is the specific quality that makes human beings human.

All men that are ruined, are ruined on the side of their natural propensities.

Duty is that mode of action which constitutes the best application of the capacity of the individual to the general advantage. Right is the claim of the individual to his share of the benefit arising from his neighbors' discharge of their several duties.

If you fast, you will give rise to sin for yourselves; and if you pray, you will be condemned; and if you give alms, you will do harm to your spirits. When you go into any land and walk about in the districts, if they receive you, eat what they will set before you, and heal the sick among them. For what goes into your mouth will not defile you, but that which issues from your mouth—it is that which will defile you.

As to [General Douglas] Macarthur, I don't feel in a position to have clear opinions about anyone I know only from newspapers. You see, whenever they deal with anyone (or anything) I know myself, I find they're always a mass of lies & misunderstandings: so I conclude they're no better in the places where I don't know.

Physics is to be regarded not so much as the study of something a priori given, but rather as the development of methods of ordering and surveying human experience. In this respect our task must be to account for such experience in a manner independent of individual subjective judgement and therefore objective in the sense that it can be unambiguously communicated in ordinary human language.

But by far the greatest hindrance and aberration of the human understanding proceeds from the dullness, incompetency, and deceptions of the senses; in that things which strike the sense outweigh things which do not immediately strike it, though they be more important. Hence it is that speculation commonly ceases where sight ceases; insomuch that of things invisible there is little or no observation.

The third of this kind of principles is : matter neither originates nor perishes; all the changes in the world concern form only ; a postulate which on the recommendation of common sense has spread through all philosophical schools, not because it is to be taken as having been found so, or as having been demonstrated by arguments a priori, but because if we were to admit that matter itself is fleeting and transitory, nothing at all that is stable and lasting would be left any longer to serve for the explication of phenomena according to universal and perpetual laws, and hence nothing at all would be left for the exercise of the intellect.

The history of the American kings of capital and authority is the history of repeated crimes, injustice, oppression, outrage, and abuse, all aiming at the suppression of individual liberties and the exploitation of the people. A vast country, rich enough to supply all her children with all possible comforts, and insure well-being to all, is in the hands of a few, while the nameless millions are at the mercy of ruthless wealth gatherers, unscrupulous lawmakers, and corrupt politicians.The reign of these kings is holding mankind in slavery, perpetuating poverty and disease, maintaining crime and corruption; it is fettering the spirit of liberty, throttling the voice of justice, and degrading and oppressing humanity. It is engaged in continual war and slaughter, devastating the country and destroying the best and finest qualities of man; it nurtures superstition and ignorance, sows prejudice and strife, and turns the human family into a camp of Ishmaelites.