To my complete surprise, that exposure to out-of-date scientific theory and practice radically undermined some of my basic conceptions about the nature of science and the reasons for its special success.Those conceptions were ones I had previously drawn partly from scientific training itself and partly from a long-standing avocational interest in the philosophy of science. Somehow, whatever their pedagogic utility and their abstract plausibility, those notions did not at all fit the enterprise that historical study displayed. Yet they were and are fundamental to many discussions of science, and their failures of verisimilitude therefore seemed thoroughly worth pursuing. The result was a drastic shift in my career plans, a shift from physics to history of science and then, gradually, from relatively straightforward historical problems back to the more philosophical concerns that had initially led me to history.

Nature is the best posture-master.

Every questioning is a seeking. Every seeking takes its direction beforehand from what is sought. Questioning is a knowing search for beings in their thatness and whatness.

The practical consequence of such a[n individualistic] philosophy is the well-known democratic respect for the sacredness of individuality,-is, at any rate, the outward tolerance of whatever is not itself intolerant. These phrases are so familiar that they sound now rather dead in our ears. Once they had a passionate inner meaning. Such a passionate inner meaning they may easily acquire again if the pretension of our nation to inflict its own inner ideals and institutions vi et armis upon Orientals should meet with a resistance as obdurate as so far it has been gallant and spirited. Religiously and philosophically, our ancient national doctrine of live and let live may prove to have a far deeper meaning than our people now seem to imagine it to possess.

Remember this, then, that this little compound, thyself, must either be dissolved, or thy poor breath must be extinguished, or be removed and placed elsewhere.

A happy and eternal being has no trouble himself and brings no trouble upon any other being; hence he is exempt from movements of anger and partiality, for every such movement implies weakness.

For several years I have referred to this, hitherto, rare and inaccessible work as the I-told-you-so-book, because it has often been implied that I have invented my explanations of Buddhism out of thin air, thus falsifying its authentic teachings... Yet, despite the occultist flavor of its title, The Secret Oral Teachings in the Tibetan Buddhist Sects is the most direct, no-nonsense, and down-to-earth explanation of Mahayana Buddhism which has thus far been written.

Newton... (after having remarked that geometry only requires two of the mechanical actions which it postulates, namely, to describe a straight line and a circle) says: geometry is proud of being able to achieve so much while taking so little from extraneous sources. One might say of metaphysics, on the other hand: it stands astonished, that with so much offered it by pure mathematics it can effect so little. In the meantime, this little is something which mathematics indispensably requires in its application to natural science, which, inasmuch as it must here necessarily borrow from metaphysics, need not be ashamed to allow itself to be seen in company with the latter.

To be overwise is to ossify; and the scruple-monger ends by standing stockstill.

The best thing about the sciences is their philosophical ingredient, like life for an organic body. If one dephilosophizes the sciences, what remains left? Earth, air, and water.

To-day, there are too many points of view of equal value and prestige, each showing the relativity of the other, to permit us to take any one position and to regard it as impregnable and absolute. Only this socially disorganized intellectual situation makes possible the insight, hidden until now by a generally stable social structure and the practicability of certain traditional norms, that every point of view is particular to a social situation.

Will is to grace as the horse is to the rider.

I can't be sure God does not exist... On a scale of seven, where one means I know he exists, and seven I know he doesn't, I call myself a six... That doesn't mean I'm absolutely confident, that I absolutely know, because I don't.

It is the same thing: killing, dying, it is the same thing: one is just as alone in each. He is lucky, he will only die once. As for me, for ten days I have been killing him at every minute. Hugo to Jessica, on his plans to kill.

What if he has borrowed the matter and spoiled the form, as it oft falls out?

So when the universe was quickened with soul, God was well pleased; and he bethought him to make it yet more like its type. And whereas the type is eternal and nought that is created can be eternal, he devised for it a moving image of abiding eternity, which we call time. And he made days and months and years, which are portions of time; and past and future are forms of time, though we wrongly attribute them also to eternity. For of eternal Being we ought not to say 'it was', 'it shall be', but 'it is' alone: and in like manner we are wrong in saying 'it is' of sensible things which become and perish; for these are ever fleeting and changing, having their existence in time.

Among the smaller duties of life I hardly know any one more important than that of not praising where praise is not due.

When you move into a new area, a new territory and learn a new language, the language is not a new subject, it is an environment, it is total.

To preserve the life of citizens, is the greatest virtue in the father of his country.

It is the love of the people; it is their attachment to their government, from the sense of the deep stake they have in such a glorious institution, which gives you both your army and your navy, and infuses into both that liberal obedience, without which your army would be a base rabble, and your navy nothing but rotten timber.

Man has his own inclinations and a natural will which, in his actions, by means of his free choice, he follows and directs. There can be nothing more dreadful than that the actions of one man should be subject to the will of another; hence no abhorrence can be more natural than that which a man has for slavery. And it is for this reason that a child cries and becomes embittered when he must do what others wish, when no one has taken the trouble to make it agreeable to him. He wants to be a man soon, so that he can do as he himself likes.

Friendship is always helpful, but love sometimes even does harm

One could count on one's fingers the number of scientists in the entire world who have a general idea of the history and development of their own particular science; there is not one who is really competent as regards sciences other than his own. As science forms an indivisible whole, one may say that there are no longer, strictly speaking, any scientists, but only drudges doing scientific work. . . .

Error is the force that welds men together; truth is communicated to men only by deeds of truth. Only deeds of truth, by introducing light into the conscience of each individual, can dissolve the cohesion of error, and detach men one by one from the mass united together by the cohesion of error.

The difference between the most dissimilar characters, between a philosopher and a common street porter, for example, seems to arise not so much from nature, as from habit, custom, and education.

Science is not distinguished from myth by science being literally true and myth only a type of poetic analogy. While their aims are different, both are composed of symbols we use to deal with a slippery world.

Philosophy's error is to be too endurable.

The Thou encounters me by grace - it cannot be found by seeking. But that I speak the basic word to it is a deed of my whole being, is my essential deed.

Now, in the solemn silence before God with the lilies and the birds, where accordingly there is nobody at all present, where accordingly there is no other intercourse for thee but with God-there indeed the rule holds good: either hold to Him/or despise Him. There is no excuse, for no one else is present, in any case no one is present in such a wise that thou canst hold to him without despising God; for precisely there in the silence it is clear how close God is to thee.

Scaffolds, dungeons, jails flourish only in the shadow of a faith - of that need to believe which has infested the mind forever. The devil pales beside the man who owns a truth, his truth. We are unfair to a Nero, a Tiberius: it was not they who invented the concept heretic: they were only degenerate dreamers who happened to be entertained by massacres. The real criminals are men who establish an orthodoxy on the religious or political level, men who distinguish between the faithful and the schismatic.

Certainly it is correct to say: Conscience is the voice of God.

The one is ready even to sacrifice itself for the good of others, the other to plunge into peril provided it drags others with it.

The proposal of any new law or regulation of commerce which comes from this order, ought always to be listened to with great precaution, and ought never to be adopted till after having been long and carefully examined, not only with the most scrupulous, but with the most suspicious attention. It comes from an order of men, whose interest is never exactly the same with that of the public, who have generally an interest to deceive and even to oppress the public, and who accordingly have, upon many occasions, both deceived and oppressed it.

The greater part of human activity is designed to make permanent those experiences and joys which are only lovable because they are changing.

The philosophy of Plotinus has the defect of encouraging men to look within rather than to look without: when we look within we see nous, which is divine, while when we look without we see the imperfections of the sensible world. This kind of subjectivity was a gradual growth; it is to be found in the doctrines of Protagoras, Socrates, and Plato, as well as in the Stoics and Epicureans. But at first it was only doctrinal, not temperamental; for a long time it failed to kill scientific curiosity. [...] Plotinus is both an end and a beginning-an end as regards the Greeks, a beginning as regards Christendom.

Aesop's Fly, sitting on the axle of the chariot, has been much laughed at for exclaiming: What a dust I do raise!

That virtue we appreciate is as much ours as another's. We see so much only as we possess.

Even the most insensitive hit song enthusiast cannot always escape the feeling that the child with a sweet tooth comes to know in the candy store.

But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother, Raca, shall be in danger of the council: but whosoever shall say, Thou fool, shall be in danger of hell fire.

We indeed, who are beings of finite powers, are forced to make use of instruments. And the use of an instrument sheweth the agent to be limited by rules of another's prescription, and that he cannot obtain his end but in such a way, and by such conditions. Whence it seems a clear consequence, that the supreme unlimited agent useth no tool or instrument at all. The will of an Omnipotent Spirit is no sooner exerted than executed, without the application of means; which, if they are employed by inferior agents, it is not upon account of any real efficacy that is in them, or necessary aptitude to produce any effect, but merely in compliance with the laws of nature, or those conditions prescribed to them by the First Cause, who is Himself above all limitation or prescription whatsoever.

As soon as men live entirely in accord with the law of love natural to their hearts and now revealed to them, which excludes all resistance by violence, and therefore hold aloof from all participation in violence - as soon as this happens, not only will hundreds be unable to enslave millions, but not even millions will be able to enslave a single individual.

Justice does not require that men must stand idly by while others destroy the basis of their existence.

Much protest is naive; it expects quick, visible improvement and despairs and gives up when such improvement does not come. Protesters who hold out for longer have perhaps understood that success is not the proper goal. If protest depended on success, there would be little protest of any durability or significance. History simply affords too little evidence that anyone's individual protest is of any use. Protest that endures, I think, is moved by a hope far more modest than that of public success: namely, the hope of preserving qualities in one's own heart and spirit that would be destroyed by acquiescence.

Like great works, deep feelings always mean more than they are conscious of saying.

Only in growth, reform, and change, paradoxically enough, is true security to be found.

Look at everything that exists, and observe that it is already in dissolution and change, and as it were putrefaction or dispersion, or that everything is so constituted in nature as to die.

The Being of the universe, at first hidden and concealed, has no power which can offer resistance to the search for knowledge ; it has to lay itself open before the seeker - to set before his eyes and give for his enjoyment, its riches and its depths.

The dream is the small hidden door in the deepest and most intimate sanctum of the soul, which opens to that primeval cosmic night that was soul long before there was conscious ego and will be soul far beyond what a conscious ego could ever reach.