Of the eternal corporeal substance (which is not producible ex nihilo, nor reducible ad nihilum, but rarefiable, condensable, formable, arrangeable, and "fashionable") the composition is dissolved, the complexion is changed, the figure is modified, the being is altered, the fortune is varied, only the elements remaining what they are in substance, that same principle persevering which was always the one material principle, which is the true substance of things, eternal, ingenerable and incorruptible.

Nothing in this book is true.

History warns us, however, that it is the customary fate of new truths to begin as heresies and to end as superstitions; and, as matters now stand, it is hardly rash to anticipate that, in another twenty years, the new generation, educated under the influences of the present day, will be in danger of accepting the main doctrines of the 'Origin of Species' with as little reflection, and it may be with as little justification, as so many of our contemporaries, twenty years ago, rejected them. Against any such a consummation let us all devoutly pray; for the scientific spirit is of more value than its products, and irrationally held truths may be more harmful than reasoned errors.

Only puny secrets need protection. Big secrets are protected by public incredulity. You can actually dissipate a situation by giving it maximal coverage. As to alarming people, that's done by rumours, not by coverage.

Some men are born committed to action: they do not have a choice, they have been thrown on a path, at the end of that path, an act awaits them, their act.

You talk of Paine with more respect than he deserves: He is utterly incapable of comprehending his subject. He has not even a moderate portion of learning of any kind. He has learnd the instrumental part of literature, a style, and a method of disposing his ideas, without having ever made a previous preparation of Study or thinking-for the use of it. ... [Paine] possesses nothing more than what a man whose audacity makes him careless of logical consequences, and his total want of honour and morality makes indifferent as to political consequences, may very easily write. They indeed who seriously write upon a principle of levelling ought to be answerd by the Magistrate-and not by the Speculatist.

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.

Have the courage to be ignorant of a great number of things, in order to avoid the calamity of being ignorant of everything.

Everything ideal has a natural basis and everything natural an ideal development.

But what all the violence of the feudal institutions could never have effected, the silent and insensible operation of foreign commerce and manufactures gradually brought about.

One has only as much morality as one has philosophy and poetry.

The proper method for hastening the decay of error is not by brute force, or by regulation which is one of the classes of force, to endeavour to reduce men to intellectual uniformity; but on the contrary by teaching every man to think for himself.

We cannot overstate our debt to the Past, but the moment has the supreme claim. The Past is for us; but the sole terms on which it can become ours are its subordination to the Present. Only an inventor knows how to borrow, and every man is or should be an inventor. We must not tamper with the organic motion of the soul.

Second, in the presence of this continuity of feeling, nominalistic maxims appear futile. There is no doubt about one idea affecting another, when we can directly perceive the one generally modified and shaping itself into the other. Nor can there any longer be any difficulty about one idea resembling another, when we can pass along the continuous field of quality from one to the other and back again to the point which we had marked.

The criterion which we use to test the genuineness of apparent statements of fact is the criterion of verifiability. We say that a sentence is factually significant to any given person, if, and only if, he knows how to verify the proposition which it purports to express - that is, if he knows what observations would lead him, under certain conditions, to accept the proposition as being true, or reject it as being false.

Sanity itself is a kind of convention.

It is enough to ask somebody for his weapons without saying 'I want to kill you with them', because when you have his weapons in hand, you can satisfy your desire.

With men this is impossible; but with God all things are possible.

Does the harmony the human intelligence thinks it discovers in nature exist outside of this intelligence? No, beyond doubt, a reality completely independent of the mind which conceives it, sees or feels it, is an impossibility. A world as exterior as that, even if it existed, would for us be forever inaccessible.

Perhaps the most valuable result of all education is the ability to make yourself do the thing you have to do, when it ought to be done, whether you like it or not; it is the first lesson that ought to be learned; and, however early a man's training begins, it is probably the last lesson that he learns thoroughly.

Man's urge for change and his need for stability have always balanced and checked each other, and our current vocabulary, which distinguishes between two factions, the progressives and the conservatives, indicates a state of affairs in which this balance has been thrown out of order. No civilization - the man-made artifact to house successive generations - would ever have been possible without a framework of stability, to provide the wherein for the flux of change. Foremost among the stabilizing factors, more enduring than customs, manners and traditions, are the legal systems that regulate our life in the world and our daily affairs with each other.

To be sane in a mad time is bad for the brain, worse for the heart.

The goodness and greatness of a man do not justify us in accepting a belief upon the warrant of his authority, unless there are reasonable grounds for supposing that he knew the truth of what he was saying. And there can be no grounds for supposing that a man knows that which we, without ceasing to be men, could not be supposed to verify.

A wise man sees as much as he ought, not as much as he can.

To eat, teeth must meet.

The great reformers of the world turn into the great misanthropists, if circumstances or organisation do not permit them to act. Christ, if He had been a woman, might have been nothing but a great complainer. Peace be with the misanthropists! They have made a step in progress; the next will make them great philanthropists; they are divided but by a line. The next Christ will perhaps be a female Christ. But do we see one woman who looks like a female Christ? or even like "the messenger before" her "face", to go before her and prepare the hearts and minds for her? To this will be answered that half the inmates of Bedlam begin in this way, by fancying that they are "the Christ." People talk about imitating Christ, and imitate Him in the little trifling formal things, such as washing the feet, saying His prayer, and so on; but if anyone attempts the real imitation of Him, there are no bounds to the outcry with which the presumption of that person is condemned.

A little folly is desirable in him that will not be guilty of stupidity.

In all affairs - love, religion, politics, or business - it's a healthy idea, now and then, to hang a question mark on the things you have long taken for granted.

It is not because the truth is too difficult to see that we make mistakes. It may even lie on the surface; but we make mistakes because the easiest and most comfortable course for us is to seek insight where it accords with our emotions - especially selfish ones.

It is our deliberate opinion that the French Revolution, in spite of all its crimes and follies, was a great blessing to mankind.

In justice as fairness society is interpreted as a cooperative venture for mutual advantage.

Physicists and philosophers stick stubbornly to the principles of a mechanistic interpretation of the world after physics has, in its factual structure, already outgrown the latter. They have the same excuse as the inhabitant of the mainland who for the first time travels on the open sea: he will desperately try to stay in sight of the vanishing coast line, as long as there is no other coast in sight, towards which he steers.

It is better to form new words as technical terms, than to employ old ones in which the last three Aphorisms cannot be complied with.

It is hard to have patience with people who say 'There is no death' or 'Death doesn't matter.' There is death. And whatever is matters. And whatever happens has consequences, and it and they are irrevocable and irreversible. You might as well say that birth doesn't matter.

For anyone who is alone, without God and without a master, the weight of days is dreadful. Hence one must choose a master, God being out of style.

This world, the whole of the planet called earth, is the common country of all who live and breathe upon it.

Virtue supposes liberty, as the carrying of a burden supposes active force. Under coercion there is no virtue, and without virtue there is no religion. Make a slave of me, and I shall be no better for it. Even the sovereign has no right to use coercion to lead men to religion, which by its nature supposes choice and liberty. My thought is no more subject to authority than is sickness or health.

The core of the belief in progress is that human values and goals converge in parallel with our increasing knowledge. The twentieth century shows the contrary. Human beings use the power of scientific knowledge to assert and defend the values and goals they already have. New technologies can be used to alleviate suffering and enhance freedom. They can, and will, also be used to wage war and strengthen tyranny. Science made possible the technologies that powered the industrial revolution. In the twentieth century, these technologies were used to implement state terror and genocide on an unprecedented scale. Ethics and politics do not advance in line with the growth of knowledge - not even in the long run.

The meeting of two personalities is like the contact of two chemical substances: if there is any reaction, both are transformed.

The essential trait in the moral consciousness, is the control of some feeling or feelings by some other feeling or feelings.

He who would write heroic poems should make his whole life a heroic poem.

The people should never be deceived, under any pretext or for any purpose. It would not only be criminal but detrimental to the revolutionary cause, for deception of any kind, by its very nature, is shortsighted, petty, narrow, always sewn with rotten threads, so that it inevitably tears and is exposed.

Give us grace and strength to forbear and to persevere. Give us courage and gaiety and the quiet mind, spare to us our friends, soften to us our enemies.