There is no good father who would want to resemble our Heavenly Father.

It is an article of passionate faith among "politically correct" biologists and anthropologists that brain size has no connection with intelligence; that intelligence has nothing to do with genes; and that genes are probably nasty fascist things anyway.

What defects women have, we must check them for in private, gently by word of mouth, for woman is a frail vessel.

Example is not the main thing. It is the only thing. That is, if the one giving the example is not saying to himself, 'Behold I am giving an example.' That spoils it. Anyone thinking of the example he will give to others has lost his simplicity. Only as a man has simplicity can his example influence others. Sometimes presented in paraphrased form, such as "Example is not the main thing in influencing others, it is the only thing".

The even larger difference between rich and poor makes the latter even worse off, and this violates the principle of mutual advantage.

The old Romans had a custom which survived even into my lifetime. They would add to the opening words of a letter: "If you are well, it is well; I also am well." Persons like ourselves would do well to say. "If you are studying philosophy, it is well." For this is just what "being well" means. Without philosophy the mind is sickly.

What is important is that sex was not only a question of sensation and pleasure, of law and interdiction, but also of the true and the false.

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.

On similar ground it may be proved that no society can make a perpetual constitution, or even a perpetual law. The earth belongs always to the living generation. They may manage it then, & what proceeds from it, as they please, during their usufruct. They are masters too of their own persons, & consequently may govern them as they please. But persons & property make the sum of the objects of government. The constitution and the laws of their predecessors extinguished then in their natural course, with those who gave them being. This could preserve that being till it ceased to be itself, & no longer. Every constitution then, & every law, naturally expires at the end of 19 years. If it be enforced longer, it is an act of force, & not of right. It may be said that the succeeding generation exercising in fact the power of repeal, this leaves them as free as if the constitution or law had been expressly limited to 19 years only.

But of such writers the number is yet (and will I fear always be so) small, that I shall not need to make many exceptions, when I treat of the usefulness of writing books of essays, in comparison of that of writing systematically: or, at least... whilst I presume not to judge of other men's abilities, I hope it may be lawful for me to confess freely to you concerning myself, that I am very sensible of my being far from having such a stock of experiments and observations, as I judge requisite to write systematically; and I am apt to impute many of the deficiencies to be met with in the theories and reasonings of such great wits as Aristotle, Campanella, and some other celebrated philosophers, chiefly to this very thing, that they have too hastily, and either upon a few observations, or at least without a competent number of experiments, presumed to establish principles, and deliver axioms.

One cannot ignore half of life for the purposes of science, and then claim that the results of science give a full and adequate picture of the meaning of life. All discussions of 'life' which begin with a description of man's place on a speck of matter in space, in an endless evolutionary scale, are bound to be half-measures, because they leave out most of the experiences which are important to use as human beings.

Not to be loved is a misfortune, but it is an insult to be loved no longer.

Professional philosophers are usually only apologists: that is, they are absorbed in defending some vested illusion or some eloquent idea. Like lawyers or detectives, they study the case for which they are retained.

Superstition, idolatry, and hypocrisy have ample wages, but truth goes a-begging.

Elements of empirical language are manipulated in their rigidity, as if they were elements of a true and revealed language. The empirical usability of the sacred ceremonial words makes both the speaker and listener believe in their corporeal presence.

And some others that I have seen, were perhaps among the first. There is no third rising. Time sweeps all away with it so fast at this epoch. The Scottish Church has been short-lived, and was late in reaching thither.

I propose in this inquiry to take nothing for granted, but to bring even accepted theories to the test of first principles, and should they not stand the test, freshly to interrogate facts in the endeavor to discover their law. I propose to beg no question, to shrink from no conclusion, but to follow truth wherever it may lead. Upon us is the responsibility of seeking the law, for in the very heart of our civilization to-day women faint and little children moan. But what that law may prove to be is not our affair. If the conclusions that we reach run counter to our prejudices, let us not flinch; if they challenge institutions that have long been deemed wise and natural, let us not turn back.

Being at one is god-like and good, but human, too human, the mania Which insists there is only the One, one country, one truth, and one way.

The original thinking force of the universe progresses and develops itself in all possible determinations of which it is capable, just as the other original natural forces progress and assume all possible configurations. I am a particular determination of the formative force, like the plant; a particular determination of the peculiar motive force, like the animal; and in addition to this a determination of the thinking force: and the union of these three basic forces into one force, into one harmonious development, is the distinguishing characteristic of my species.

The, diverse states of the soul are always correlative with those of the body.

If thou wilt be perfect, go and sell that thou hast, and give to the poor, and thou shalt have treasure in heaven: and come and follow me.

That a man be willing, when others are so too, as farre-forth, as for Peace, and defence of himself he shall think it necessary, to lay down this right to all things; and be contented with so much liberty against other men, as he would allow other men against himself.

Truth that has been merely learned is like an artificial limb, a false tooth, a waxen nose; at best, like a nose made out of another's flesh; it adheres to us only because it is put on. But truth acquired by thinking of our own is like a natural limb; it alone really belongs to us. This is the fundamental difference between the thinker and the mere man of learning. The intellectual attainments of a man who thinks for himself resemble a fine painting, where the light and shade are correct, the tone sustained, the colour perfectly harmonised; it is true to life. On the other hand, the intellectual attainments of the mere man of learning are like a large palette, full of all sorts of colours, which at most are systematically arranged, but devoid of harmony, connection and meaning.

We must have kings, and we must have nobles. Nature provides such in every society, - only let us have the real instead of the titular. Let us have our leading and our inspiration from the best. In every society some men are born to rule, and some to advise. Let the powers be well directed, directed by love, and they would everywhere be greeted with joy and honor.

Fools have a habit of believing that everything written by a famous author is admirable. For my part I read only to please myself and like only what suits my taste.

Be not afraid of life. Believe that life is worth living, and your belief will help create the fact.

Toleration is good for all, or it is good for none.

While we stop to think, we often miss our opportunity.

If the task of philosophy is to break the domination of words over the human mind, then my concept notation, being developed for these purposes, can be a useful instrument for philosophers. I believe the cause of logic has been advanced already by the invention of this concept notation.

Men became scientific because they expected law in Nature; and they expected law in Nature because they believed in a Legislator.

Of all kind of authors there are none I despise more than compilers, who search every where for shreds of other men's works, which they join to their own, like so many pieces of green turf in a garden: they are not at all superior to compositors in a printing house, who range the types, which, collected together, make a book, towards which they contribute nothing but the labours of the hand. I would have original writers respected, and it seems to me a kind of profanation to take those pieces from the sanctuary in which they reside, and to expose them to a contempt they do not deserve. When a man hath nothing new to say, why does not he hold his tongue? What business have we with this double employment?"

To acquire immunity to eloquence is of the utmost importance to the citizens of a democracy.

The student of development finds, not only that the chick commences its existence as an egg, primarily identical, in all essential respects, with that of the Dog, but that the yelk of this egg undergoes division-that the primitive groove arises, and that the contiguous parts of the germ are fashioned, by precisely similar methods into a young chick, which, at one stage of its existence, is so like the nascent Dog, that ordinary inspection would hardly distinguish the two.

It is all too easy to forget that there are emotional motivations in history, as well as economic ones.

It is easier for the prince to make friends of those men who were contented under the former government, and are therefore his enemies, than of those who, being discontented with it, were favourable to him and encouraged him to seize it. 

Nature ... is inexorable and immutable; she never transgresses the laws imposed upon her, or cares a whit whether her abstruse reasons and methods of operation are understandable to men. For that reason it appears that nothing physical which sense-experience sets before our eyes, or which necessary demonstrations prove to us, ought to be called in question (much less condemned) upon the testimony of biblical passages which may have some different meaning beneath their words. For the Bible is not chained in every expression to conditions as strict as those which govern all physical effects; nor is God any less excellently revealed in Nature's actions than in the sacred statements of the Bible.

The ancient Egyptians had a superstitious antipathy to the sea; a superstition nearly of the same kind prevails among the Indians; and the Chinese have never excelled in foreign commerce.

We do not directly go about the execution of the purpose that thrills us, but shut our doors behind us, and ramble with prepared minds, as if the half were already done. Our resolution is taking root or hold on the earth then, as seeds first send a shoot downward, which is fed by their own albumen, ere they send one upwards to the light.

For it is the chief characteristic of the religion of science, that it works, and that such curses as that of Aporat's are really deadly.

Perhaps the only true dignity of man is his capacity to despise himself.

The aim of research is the discovery of the equations which subsist between the elements of phenomena.

He whom God has touched will always be a being apart: he is, whatever he may do, a stranger among men; he is marked by a sign.

Terms which imply theoretical views are admissible, as far as the theory is proved.

Probability fractions arise from our knowledge and from our ignorance.