If I was not a physicist, I would probably be a musician. I often think in music. I live my daydreams in music. I see my life in terms of music. ... I cannot tell if I would have done any creative work of importance in music, but I do know that I get most joy in life out of my violin.

I trust a good deal to common fame, as we all must. If a man has good corn, or wood, or boards, or pigs, to sell, or can make better chairs or knives, crucibles or church organs, than anybody else, you will find a broad hard-beaten road to his house, though it be in the woods.

The experiences of this period had two very marked effects on my opinions and character. In the first place, they led me to adopt a theory of life, very unlike that on which I had before acted, and having much in common with what at that time I certainly had never heard of, the anti-self-consciousness theory of Carlyle.

Whether we and our politicians know it or not, Nature is party to all our deals and decisions, and she has more votes, a longer memory, and a sterner sense of justice than we do.

After all, in the poets love has its priests, and sometimes one hears a voice which knows how to defend it; but of faith one hears never a word. Who speaks in honor of this passion? Philosophy goes further. Theology sits rouged at the window and courts its favor, offering to sell her charms to philosophy. it is supposed to be difficult to understand Hegel, but to understand Abraham is a trifle. To go beyond Hegel's is a miracle, but to get beyond Abraham is the easiest thing of all.

There was once a millionaire who bought an infinite number of pairs of shoes and, whenever he bought a pair of shoes, he also bought a pair of socks. We can make a selection choosing one out of each pair of shoes, because we can choose always the right shoe or always the left shoe. Thus, so far as the shoes are concerned, selections exist. But, as regards the socks, where there is no distinction of right and left, we cannot use this rule of selection.

For it is with the same imperialism that present-day simulators try to make the real, all of the real, coincide with their simulation models.

I am endeavouring to live every day as if it were a complete life.

I hate the world and almost all the people in it. I hate the Labour Congress and the journalists who send men to be slaughtered, and the fathers who feel a smug pride when their sons are killed, and even the pacifists who keep saying human nature is essentially good, in spite of all the daily proofs to the contrary. I hate the planet and the human race - I am ashamed to belong to such a species.

Jesus is too colossal for the pen of phrasemongers, however artful. No man can dispose of Christianity with a bon mot.

In actions of enthusiasm, this drawback appears: but in those lower activities, which have no higher aim than to make us more comfortable and more cowardly, in actions of cunning, actions that steal and lie, actions that divorce the speculative from the practical faculty, and put a ban on reason and sentiment, there is nothing else but drawback and negation.

The inventive genius of great England will not forever sit patient with mere wheels and pinions, bobbins, straps and billy-rollers whirring in the head of it. The inventive genius of England is not a Beaver's, or a Spinner's or Spider's genius: it is a Man's genius, I hope, with a God over him!

It is sometimes maintained that racial mixture is biologically undesirable. There is no evidence whatever for this view. Nor is there, apparently, any reason to think that Negroes are congenitally less intelligent than white people, but as to that it will be difficult to judge until they have equal scope and equally good social conditions.

By convention sweet is sweet, bitter is bitter, hot is hot, cold is cold, color is color; but in truth there are only atoms and the void.

I wrote the books I should have liked to read. That's always been my reason for writing. People won't write the books I want, so I have to do it for myself.

Prose is private drama; poetry is corporate drama.

When we are the victims of illusion we do not feel it to be an illusion but a reality. It is the same perhaps with evil. Evil when we are in its power is not felt as evil but as a necessity, or even a duty.

Neither the few nor the many have a right to act merely by their will, in any matter connected with duty, trust, engagement, or obligation.

Take, eat; this is my body. And he took the cup, and gave thanks, and gave it to them, saying, Drink ye all of it; For this is my blood of the new testament, which is shed for many for the remission of sins. But I say unto you, I will not drink henceforth of this fruit of the vine, until that day when I drink it new with you in my Father's kingdom.

It is sweet and honorable to die for one's country.

It must be obvious... that there is a contradiction in wanting to be perfectly secure in a universe whose very nature is momentariness and fluidity.

These Lectures, conjoined with those which have already appeared under the titles of "The Characteristics of the Present Age," and "The Nature of the Scholar," in the latter of which the tone of thought that governs the present course is applied to a particular subject, form a complete scheme of popular instruction, of which the present work exhibits the highest and clearest summit; and, taken together, they are the result of a process of self-culture, unceasingly pursued during the last six or seven years of my life, with greater leisure and in riper maturity, by means of that Philosophy in which I have been a partaker for thirteen years, and which, although, I hope, it has changed many things in me, has nevertheless itself suffered no change whatever during that period.

The sphere of consciousness shrinks in action; no one who acts can lay claim to the universal, for to act is to cling to the properties of being at the expense of being itself, to form a reality to reality's detriment.

A man might say, with enough truth to justify a joke: "Science is what we know, and philosophy is what we don't know." But it should be added that philosophical speculation as to what we do not yet know has shown itself a valuable preliminary to exact scientific knowledge.

In the Church which was founded at Corinth, St. Paul had special difficulties of the kind I have mentioned. In that flourishing commercial city, which through its shipping and situation, maintained a vital connexion between East and West, numerous crowds of people flocked together from all quarters, different in speech and in culture. As they mingled with the inhabitants, they produced, by contacts and contrasts, new and ever new differences. Even in the Church this differentiation endeavoured to make itself felt in sects and parties; and a kind of pagan wisdom made a special attempt to force itself forward as a teacher of truth. In his first letter to this church, from which the text I read is taken, St. Paul strongly combats this tendency.

It was a rude gross error, that of counting the Great Man a god. Yet let us say that it is at all times difficult to know what he is, or how to account of him and receive him!

The alphabet, when pushed to a high degree of abstract visual intensity, became typography. The printed word with its specialist intensity burst the bonds of medieval corporate guilds and monasteries, created extreme individualist patterns of enterprise and monopoly.

The supreme task of the physicist is to arrive at those universal elementary laws from which the cosmos can be built up by pure deduction. There is no logical path to these laws; only intuition, resting on sympathetic understanding of experience, can reach them. In this methodological uncertainty, one might suppose that there were any number of possible systems of theoretical physics all equally well justified; and this opinion is no doubt correct, theoretically. But the development of physics has shown that at any given moment, out of all conceivable constructions, a single one has always proved itself decidedly superior to all the rest.

Eternal vigilance is the price of knowledge.

Men are not allowed to think freely about chemistry and biology: why should they be allowed to think freely about political philosophy?

I acknowledge that history is full of religious wars: but we must distinguish; it is not the multiplicity of religions which has produced wars; it is the intolerant spirit animating that which believed itself in the ascendant.

We love those who hate our enemies, and if we had no enemies there would be very few people whom we should love. All this, however, is only true so long as we are concerned solely with attitudes towards other human beings. You might regard the soil as your enemy because it yields reluctantly a niggardly subsistence. You might regard Mother Nature in general as your enemy, and envisage human life as a struggle to get the better of Mother Nature. If men viewed life in this way, cooperation of the whole human race would become easy. And men could easily be brought to view life in this way if schools, newspapers, and politicians devoted themselves to this end. But schools are out to teach patriotism; newspapers are out to stir up excitement; and politicians are out to get re-elected. None of the three, therefore, can do anything towards saving the human race from reciprocal suicide.

I do what is mine to do; the rest doesn't disturb me.

The proof of a theory is in its reasoning, not in its sponsorship.

"What's wrong - what's the matter with you?" Nothing, nothing's the matter, I've merely taken a leap outside my fate, and now I don't know where to turn, what to run for...

Once the needs of hunger are satisfied - and they are soon satisfied - the vanity, the necessity - for it is a necessity - arises of imposing ourselves upon and surviving in others. Man habitually sacrifices his life to his purse, but he sacrifices his purse to his vanity. He boasts even of his weakness and his misfortunes, for want of anything better to boast of, and is like a child who, in order to attract attention, struts about with a bandaged finger.

We are so lonely in life that we must ask ourselves if the loneliness of dying is not a symbol of our human existence.

For if a thing is not diminished by being shared with others, it is not rightly owned if it is only owned and not shared.

Jacobinism is the revolt of the enterprising talents of a country against its property.

Considered as the last finish of education, or of human culture, worth and acquirement, the art of speech is noble, and even divine; it is like the kindling of a Heaven's light to show us what a glorious world exists, and has perfected itself, in a man.

Global rationality, the rationality of neoclassical theory, assumes that the decision maker has a comprehensive, consistent utility function, knows all the alternatives that are available for choice, can compute the expected value of utility associated with each alternative, and chooses the alternative that maximizes expected utility. Bounded rationality, a rationality that is consistent with our knowledge of actual human choice behavior, assumes that the decision maker must search for alternatives, has egregiously incomplete and inaccurate knowledge about the consequences of actions, and chooses actions that are expected to be satisfactory (attain targets while satisfying constraints).

It is a paradoxical but profoundly true and important principle of life that the most likely way to reach a goal is to be aiming not at that goal itself but at some more ambitious goal beyond it.

Fundamental ideas play the most essential role in forming a physical theory. Books on physics are full of complicated mathematical formulae. But thought and ideas, not formulae, are the beginning of every physical theory. The ideas must later take the mathematical form of a quantitative theory, to make possible the comparison with experiment.

Man is a synthesis of psyche and body, but he is also a synthesis of the temporal and the eternal. In the former, the two factors are psyche and body, and spirit is the third, yet in such a way that one can speak of a synthesis only when the spirit is posited. The latter synthesis has only two factors, the temporal and the eternal. Where is the third factor? And if there is no third factor, there really is no synthesis, for a synthesis that is a contradiction cannot be completed as a synthesis without a third factor, because the fact that the synthesis is a contradiction asserts that it is not. What, then, is the temporal?

Behold a God more powerful than I who comes to rule over me.

In the late eighteenth and the greater part of the nineteenth centuries appeared the first marked cultural shift in the attitude taken toward change. Under the names of indefinite perfectibility, progress, and evolution, the movement of things in the universe itself and of the universe as a whole began to take on a beneficent instead of hateful aspect.