You could give Aristotle a tutorial. And you could thrill him to the core of his being. Aristotle was an encyclopedic polymath, an all time intellect. Yet not only can you know more than him about the world, you also can have a deeper understanding of how everything works. Such is the privilege of living after Newton, Darwin, Einstein, Planck, Watson, Crick and their colleagues.

Materialism ends up denying the existence of any irreducible subjective qualitative states of sentience or awareness.

The State is a collection of officials, different for difference purposes, drawing comfortable incomes so long as the status quo is preserved. The only alteration they are likely to desire in the status quo is an increase of bureaucracy and the power of bureaucrats.

Universal is known according to reason, but that which is particular, according to sense...

At present they [philosophers] seem to be in a very lamentable condition, and such as the poets have given us but a faint notion of in their descriptions of the punishment of Sisyphus and Tantalus. For what can be imagin'd more tormenting, than to seek with eagerness, what for ever flies us; and seek for it in a place, where 'tis impossible it can ever exist?

There is no more lovely, friendly and charming relationship, communion or company than a good marriage.

Stupidity is much the same all the world over. A stupid person's notions and feelings may confidently be inferred from those which prevail in the circle by which the person is surrounded. Not so with those whose opinions and feelings are an emanation from their own nature and faculties.

For the purpose of acquiring gain, everything else is pushed aside or thrown overboard, for example, as is philosophy by the professors of philosophy.

This is a long book, not only in pages.

If a person gave your body to any stranger he met on his way, you would certainly be angry. And do you feel no shame in handing over your own mind to be confused and mystified by anyone who happens to verbally attack you?

One is ashamed to say how little is needed for all men to be delivered from those calamities which now oppress them; it is only needful not to lie.

Choose rather to be strong in soul than in body.

The basic word I-Thou can be spoken only with one's whole being. The concentration and fusion into a whole being can never be accomplished by me, can never be accomplished without me. I require a Thou to become; becoming I, I say Thou.

We ourselves are the entities to be analyzed.

"These Macedonians," said he, "are a rude and clownish people, that call a spade a spade."

The steady drip of water causes stone to hollow and yield.

In a head-on clash between violence and power, the outcome is hardly in doubt. Nowhere is the self-defeating factor in the victory of violence over power more evident than in the use of terror to maintain domination, about whose weird successes and eventual failures we know perhaps more than any generation before us. Violence can destroy power; it is utterly incapable of creating it.

Once you had read the Psychopathology of Everyday Life, you knew that everyday life was psychopathology.

In the electric age, when our central nervous system is technologically extended to involve us in the whole of mankind and to incorporate the whole of mankind in us, we necessarily participate, in depth, in the consequences of our every action. It is no longer possible to adopt the aloof and dissociated role of the literate Westerner.

Once in his early youth a man allowed himself to be so far carried away in an overwrought irresponsible state as to visit a prostitute. It is all forgotten. Now he wants to get married. Then anxiety stirs. He is tortured day and night with the thought that he might possibly be a father, that somewhere in the world there could be a created being who owed his life to him. He cannot share his secret with anyone; he does not even have any reliable knowledge of the fact. –For this reason the incident must have involved a prostitute and taken place in the wantonness of youth; had it been a little infatuated or an actual seduction, it would be hard to imagine that he could know nothing about it, but now this this very ignorance is the basis of his agitated torment. On the other hand, precisely because of the rashness of the whole affair, his misgivings do not really start until he actually falls in love.

A character is a completely fashioned will.

If the ability to tell right from wrong should turn out to have anything to do with the ability to think, then we must be able to "demand" its exercise from every sane person, no matter how erudite or ignorant, intelligent or stupid, he may happen to be. Kant-in this respect almost alone among the philosophers-was much bothered by the common opinion that philosophy is only for the few, precisely because of its moral implications.

Then we understand that rebellion cannot exist without a strange form of love. Those who find no rest in God or in history are condemned to live for those who, like themselves, cannot live; in fact, for the humiliated.

A single breaker may recede; but the tide is evidently coming in.

The Austrian Germans and Magyars will be set free and wreak a bloody revenge on the Slav barbarians. The general war which will then break out will smash this Slav Sonderbund and wipe out all these petty hidebound nations, down to their very names. The next world war will result in the disappearance from the face of the earth not only of reactionary classes and dynasties, but also of entire reactionary peoples. And that, too, is a step forward.

Metaphysical rebellion is a claim, motivated by the concept of a complete unity, against the suffering of life and death and a protest against the human condition both for its incompleteness, thanks to death, and its wastefulness, thanks to evil.

The greatest danger, that of losing one's own self, may pass off as quietly as if it were nothing; every other loss, that of an arm, a leg, five dollars, a wife etc., is sure to be noticed.

Our life is no dream, but it should and perhaps will become one.

Brothers, love is a teacher; but one must know how to acquire it, for it is hard to acquire, it is dearly bought, it is won slowly by long labour. For we must love not only occasionally, for a moment, but for ever. Everyone can love occasionally, even the wicked can.

Irony limits, finitizes, and circumscribes and thereby yields truth, actuality, content; it disciplines and punishes and thereby yields balance and consistency.

Life is one long struggle in the dark.

Women are systematically degraded by receiving the trivial attentions which men think it manly to pay to the sex, when, in fact, men are insultingly supporting their own superiority.

The first characteristic of the human species is man's ability, as a rational being, to establish character for himself, as well as for the society into which nature has placed him. This ability, however, presupposes an already favorable natural predisposition and an inclination to the good in man, because the evil is really without character (since it is at odds with itself, and since it does not tolerate any lasting principle within itself)

I consider one of the most important duties of any scientist the teaching of science to students and to the general public.

Reason is not measured by size or height, but by principle.

What J.P. Morgan and John D. Rockefeller were to the Age of Robber Barons, Microsoft's Bill Gates and Berkshire Hathaway's Warren Buffett, as well as digital moguls like Mark Zuckerberg and Jeff Bezos are to the contemporary age of the rule of the 1%. Then as now, the super-rich used governments to write laws and rules to allow them to accumulate unlimited wealth; then as now, creating monopolies by enclosing the commons and killing competition is the strategy for becoming the 1%.

Natural religion supplies still all the facts which are disguised under the dogma of popular creeds. The progress of religion is steadily to its identity with morals.

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.

The third argument, enclosing and defending the other two, consists in the development of those principles of logic according to which the humble argument is the first stage of a scientific inquiry into the origin of the three Universes, but of an inquiry which produces, not merely scientific belief, which is always provisional, but also a living, practical belief, logically justified in crossing the Rubicon with all the freightage of eternity.

The vocation of every man and woman is to serve other people.

There is a real, living unity in our time, as in any other, but it lies submerged under a superficial hubbub of sensation.

The self-surmounter can never put up with the man who has ceased to be dissatisfied with himself.

Nobody really thinks who does not abstract from that which is given, who does not relate the facts to the factors which have made them, who does not - in his mind - undo the facts. Abstractness is the very life of thought, the token of its authenticity.

For when every judgement is the act of hym that judgeth, it behoveth that every man performe hys worke and purpose, not by any forayne or straunge power or facultie, but by his owne proper power, and strength.

If a person is stupid, we excuse him by saying that he cannot help it; but if we attempted to excuse in precisely the same way the person who is bad, we should be laughed at.

We must remove the Decalogue out of sight and heart.

The essence of the belief that bats have experience is that there is something that it is like to be a bat. Now we know that most bats (the microchiroptera, to be precise) perceive the external world primarily by sonar, or echolocation. ... But bat sonar, though clearly a form of perception, is not similar in its operation to any sense that we possess, and there is no reason to suppose that it is subjectively like anything we can experience or imagine. This appears to create difficulties for the notion of what it is like to be a bat.

Art, at least, teaches us that man cannot be explained by history alone and that he also finds a reason for his existence in the order of nature.