We may, to be more precise, have to relinquish the notion, explicit or implicit, that changes of paradigm carry scientists and those who learn from them closer and closer to the truth.

Friendship and domestic happiness are continually praised; yet how little is there of either in the world, because it requires more cultivation of mind to keep awake affection, even in our own hearts, than the common run of people suppose. Besides, few like to be seen as they really are; and a degree of simplicity, and of undisguised confidence, which, to uninterested observers, would almost border on weakness, is the charm, nay the essence of love or friendship, all the bewitching graces of childhood again appearing.

Speaking with sense we must fortify ourselves in the common sense of all, as a city is fortified by its law, and even more forcefully. For all human laws are nourished by the one divine law. For it prevails as far as it will and suffices for all and is superabundant.

There were nowhere more docile disciples of Lenin, Trotsky and Stalin than the Nazis were.

It is not sufficient to observe our mysteries in the seclusion of our lodge-we must act-act! We are drowsing, but we must act. (Pierre raised his notebook and began to read.) For the dissemination of pure truth and to secure the triumph of virtue," he read, "we must cleanse men from prejudice, diffuse principles in harmony with the spirit of the times, undertake the education of the young, unite ourselves in indissoluble bonds with the wisest men, boldly yet prudently overcome superstitions, infidelity, and folly, and form of those devoted to us a body linked together by unity of purpose and possessed of authority and power.

It is rare that the public sentiment decides immorally or unwisely, and the individual who differs from it ought to distrust and examine well his own opinion.

The will is the living principle of the rational soul, is indeed itself reason, when purely and simply apprehended. That reason is itself active, means, that the pure will, as such, rules and is effectual. The infinite reason alone lies immediately and entirely in the purely spiritual order. The finite being lives necessarily at the same time in a sensuous order; that is to say, in one which presents to him other objects than those of pure reason; a material object, to be advanced by instruments and powers, standing indeed under the immediate command of the will, but whose efficacy is conditional also on its own natural laws.

Good communication is as stimulating as black coffee, and just as hard to sleep after. Variant: Good communication is just as stimulating as...

Language is a part of our organism and no less complicated than it.

Poetry and the arts can't exist in America. Mere exposure to the arts does nothing for a mentality which is incorrigibly dialectical. The vital tensions and nutritive action of ideogram remain inaccessible to this state of mind.

My purpose is to set forth a very new science dealing with a very ancient subject. There is, in nature, perhaps nothing older than motion, concerning which the books written by philosophers are neither few nor small; nevertheless I have discovered by experiment some properties of it which are worth knowing and which have not hitherto been either observed or demonstrated. Some superficial observations have been made, as, for instance, that the free motion [naturalem motum] of a heavy falling body is continuously accelerated; but to just what extent this acceleration occurs has not yet been announced; for so far as I know, no one has yet pointed out that the distances traversed, during equal intervals of time, by a body falling from rest, stand to one another in the same ratio as the odd numbers beginning with unity.

We look at the present through a rear-view mirror. We march backwards into the future.

Man with the great M is only an ideal, the species only something thought of.

Art is not, as the metaphysicians say, the manifestation of some mysterious Idea of beauty or God; it is not, as the aesthetical physiologists say, [play or] a game in which one releases surplus energy, ...not the production of pleasing objects, and is above all, not pleasure itself, but it is the means of union among mankind, joining them in the same feelings, and necessary for the life and progress toward the good of the individual and of humanity.

The annual labour of every nation is the fund which originally supplies it with all the necessaries and conveniences of life which it annually consumes.

A modern factory reaches perhaps almost the limit of horror. Everybody in it is constantly harassed and kept on edge by the interference of extraneous wills while the soul is left in cold and desolate misery. What man needs is silence and warmth; what he is given is an icy pandemonium.Physical labour may be painful, but it is not degrading as such. It is not art; it is not science; it is something else, possessing an exactly equal value with art and science, for it provides an equal opportunity to reach the impersonal stage of attention.

If pains be to be taken to give him a manly air and assurance betimes, it is chiefly as a fence to his virtue when he goes into the world under his own conduct.

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.

In the present situation, such an experiment would be doubly dangerous to the Russian Social Democracy. It stands on the eve of decisive battles against tsarism. It is about to enter, or has already entered, on a period of intensified creative activity, during which it will broaden (as is usual in a revolutionary period) its sphere of influence and will advance spontaneously by leaps and bounds. To attempt to bind the initiative of the party at this moment, to surround it with a network of barbed wire, is to render it incapable of accomplishing the tremendous task of the hour.

The method of not erring is sought by all the world. The logicians profess to guide it, the geometricians alone attain it, and apart from science, and the imitations of it, there are no true demonstrations.

Rousseau has said in his Emile (book iv.): "Even though philosophers should be in a position to discover the truth, which of them would take any interest in it? Each one knows well that his system is not better founded than the others, but he supports it because it is his. ...The essential thing is to think differently from others. With believers he is an atheist; with atheists he is a believer." How much substantial truth there is in these gloomy confessions of this man of painful sincerity.

I said only one word, brought only one message: Love. Love - nothing else.

To give the monopoly of the home-market to the produce of domestic industry, in any particular art or manufacture, is in some measure to direct private people in what manner they ought to employ their capitals, and must, in almost all cases, be either a useless or a hurtful regulation.

Wherever Macdonald sits, there is the head of the table.

And we cannot change this order of things; but what we can do is to acquire stout hearts, worthy of good men, thereby courageously enduring chance and placing ourselves in harmony with Nature.

Philosophers are adults who persist in asking childish questions. 

Paradox is the technique for seizing the conflicting aspects of any problem. Paradox coalesces or telescopes various facets of a complex process in a single instant.

One of the biggest paradoxes of our world: memories vanish when we want to remember, but fix themselves permanently in the mind when we want to forget.

Hast thou named all the birds without a gun; Loved the wood-rose, and left it on its stalk.

There is no tyranny in the world more hateful than that of ideas. Ideas bring ideophobia, and the consequence is that people begin to persecute their neighbors in the name of ideas. I loathe and detest all labels, and the only label that I could now tolerate would be that of ideoclast or idea breaker.

The ethical commonplaces of any period include ideas that may have been radical discoveries in a previous age. This is true of modern conceptions of liberty, equality, and democracy, and we are in the midst of ethical debates which will probably result two hundred years hence in a disseminated moral sensibility that people of our time would find very unfamiliar.

In philosophical anthropology, ... where the subject is man in his wholeness, the investigator cannot content himself, as in anthropology as an individual science, with considering man as another part of nature and with ignoring the fact that he, the investigator, is himself a man and experiences this humanity in his inner experience in a way that he simply cannot experience any part of nature.

When we know what words are worth, the amazing thing is that we try to say anything at all, and that we manage to do so. This requires, it is true, a supernatural nerve.

Poetry is the mysticism of mankind.

Fine manners need the support of fine manners in others, and this is a gift interred only by the self.

There is the same difference between political theory and constitutional laws as there is between poetics and poetry. The illustrious Montesquieu is to Lycurgus, in the intellectual hierarchy, what Batteux is to Homer or Racine. Moreover, these two talents positively exclude each other, as can be seen by the example of Locke, who fumbled badly when he presumed to give laws to the Americans.

Why should I not regard this as desirable-not because the fire, burns me, but because it does not overcome me?

Two principles we should always have ready that there is nothing good or evil save in the will; and that we are not to lead events, but to follow them.

The ethic of Reverence for Life prompts us to keep each other alert to what troubles us and to speak and act dauntlessly together in discharging the responsibility that we feel. It keeps us watching together for opportunities to bring some sort of help to animals in recompense for the great misery that men inflict upon them, and thus for a moment we escape from the incomprehensible horror of existence.

The naturalists, you know, distribute the history of nature into three kingdoms or departments: zoology, botany, mineralogy. Ideology, or mind, however, occupies so much space in the field of science, that we might perhaps erect it into a fourth kingdom or department. But inasmuch as it makes a part of the animal construction only, it would be more proper to subdivide zoology into physical and moral.

Philosophy unravels the knots in our thinking; hence its results must be simple, but its activity is as complicated as the knots that it unravels.

It would be better to have no laws at all than to have them in such profusion as we do.

What anxiety when one is not sure of one's doubts or wonders: are these actually doubts?

In the final, positive state, the mind has given over the vain search after Abolute notions, the origin and destination of the universe, and the cause of phenomenon, and applies itself to the tudy of their laws, - that is, their invariable relations of succession and resemblance. Reasoning and observation, duly combined, are the means of this knowledge. What is now understood when we speak of an explanation of the facts is simply the establishment of a connection between single phenomena and some general facts, the number of which continually diminishes with the progress of science.

Crocodiles sweetly shut their lidded eyes, and yawned,for the blond meat had been quite good, and in slow rainsnew flesh would sprout once more and then be munched anew.

Giving then to matter all the properties which philosophy knows it has, or all that atheism ascribes to it, and can prove, and even supposing matter to be eternal, it will not account for the system of the universe or of the solar system, because it will not account for motion, and it is motion that preserves it. When, therefore, we discover a circumstance of such immense importance, that without it the universe could not exist, and for which neither matter, nor any, nor all, the properties of matter can account, we are by necessity forced into the rational and comfortable belief of the existence of a cause superior to matter, and that cause man calls, God.