In the vaunted works of Art The master stroke is Nature's part.

Literary imagination is an aesthetic object offered by a writer to a lover of books.

The bias of each medium of communication is far more distorting than the deliberate lie.

The hazards of the generalized prisoner's dilemma are removed by the match between the right and the good.

I cannot help fearing that men may reach a point where they look on every new theory as a danger, every innovation as a toilsome trouble, every social advance as a first step toward revolution, and that they may absolutely refuse to move at all.

The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!', but 'That's funny ...'

The Divine light is always in man, presenting itself to the senses and to the comprehension, but man rejects it.

To be sure, risks abound; but no one is proposing compassionate stewardship of ecosystems by philosophers. Humans are capable of choosing our own future pain-sensitivity too; but any species-wide genomic shift in human pain tolerance will depend on the willingness of prospective parents to use preimplantation genetic screening.

I have never seen a class so deeply demoralised, so incurably debased by selfishness, so corroded within, so incapable of progress, as the English bourgeoisie; and I mean by this, especially the bourgeoisie proper, particularly the Liberal, Corn Law repealing bourgeoisie. For it nothing exists in this world, except for the sake of money, itself not excluded. It knows no bliss save that of rapid gain, no pain save that of losing gold. In the presence of this avarice and lust of gain, it is not possible for a single human sentiment or opinion to remain untainted.

There are no passengers on Spaceship Earth. We are all crew.

There slowly grew up in me an unshakable conviction that we have no right to inflict suffering and death on another living creature unless there is some unavoidable necessity for it, and that we ought all of us to feel what a horrible thing it is to cause suffering and death out of mere thoughtlessness. And this conviction has influenced me only more and more strongly with time. I have grown more and more certain that at the bottom of our heart we all think this, and that we fail to acknowledge it because we are afraid of being laughed at by other people as sentimentalists, though partly also because we allow our best feelings to get blunted. But I vowed that I would never let my feelings get blunted, and that I would never be afraid of the reproach of sentimentalism.

For the Lawes of Nature (as Justice, Equity, Modesty, Mercy, and (in summe)doing to others, as wee would be done to,) of themselves, without the terrour of some Power, to cause them to be observed, are contrary to our naturall Passions, that carry us to Partiality, Pride, Revenge, and the like. And Covenants, without the Sword, are but Words, and of no strength to secure a man at all.

Early and provident fear is the mother of safety.

Fortune is not satisfied with inflicting one calamity.

The office of the sovereign, be it a monarch or an assembly, consisteth in the end for which he was trusted with the sovereign power, namely the procuration of the safety of the people, to which he is obliged by the law of nature, and to render an account thereof to God, the Author of that law, and to none but Him. But by safety here is not meant a bare preservation, but also all other contentments of life, which every man by lawful industry, without danger or hurt to the Commonwealth, shall acquire to himself. And this is intended should be done, not by care applied to individuals, further than their protection from injuries when they shall complain; but by a general providence, contained in public instruction, both of doctrine and example; and in the making and executing of good laws to which individual persons may apply their own cases.

Diversity makes critical argument fruitful. ...[P]artners in an argument must share ...the wish to know, and the readiness to learn from the other ...by severely criticizing his views... and hearing... [the] reply. ...the so-called method of science consists in this kind of criticism.

Perhaps there is nobody who would sacrifice his life for the sake of maintaining that the three angles of a triangle are together equal to two right angles, for such a truth does not demand the sacrifice of our life; but, on the other hand, there are many who have lost their lives for the sake of maintaining their religious faith. Indeed, it is truer to say that martyrs make faith than that faith makes martyrs. For faith is not the mere adherence of the intellect to an abstract principle; it is not the recognition of a theoretical truth, the process in which the will merely sets in motion our faculty of comprehension; faith is an act of the will - it is a movement of the soul towards a practical truth, towards a person, towards something that makes us not merely comprehend life, but that makes us live.

It is never to be expected in a revolution that every man is to change his opinion at the same moment. There never yet was any truth or any principle so irresistibly obvious that all men believed it at once. Time and reason must cooperate with each other to the final establishment of any principle; and therefore those who may happen to be first convinced have not a right to persecute others, on whom conviction operates more slowly. The moral principle of revolutions is to instruct, not to destroy.

When my ability to reason shows me that the suffering of another being is very similar to my own suffering and matters just as much to that other being as my own suffering matters to me, then my reason is showing me something that is undeniably true. ... The perspective on ourselves that we get when we take the point of view of the universe also yields as much objectivity as we need if we are to find a cause that is worthwhile in a way that is independent of our own desires. The most obvious such cause is the reduction of pain and suffering, wherever it is to be found.

Every person I met believes if there is any disagreement between the Koran and science, then the Koran wins. It's just utterly deplorable. These are now British children who are having their minds stuffed with alien rubbish. Occasionally, my colleagues lecturing in universities lament having undergraduate students walk out of their classes when they talk about evolution. This is almost entirely Muslims.

Poor David Hume is dying very fast, but with great cheerfulness and good humour and with more real resignation to the necessary course of things then any whining Christian ever dyed with pretended resignation to the will of God.

When we have chosen the vocation in which we can contribute most to humanity, burdens cannot bend us because they are only sacrifices for all. Then we experience no meager, limited, egotistic joy, but our happiness belongs to millions, our deeds live on quietly but eternally effective, and glowing tears of noble men will fall on our ashes.

Free trade consists simply in letting people buy and sell as they want to buy and sell. It is protection that requires force, for it consists in preventing people from doing what they want to do. Protective tariffs are as much applications of force as are blockading squadrons, and their object is the same-to prevent trade. The difference between the two is that blockading squadrons are a means whereby nations seek to prevent their enemies from trading; protective tariffs are a means whereby nations attempt to prevent their own people from trading. What protection teaches us, is to do to ourselves in time of peace what enemies seek to do to us in time of war.

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.

If a work of art is to explore new environments, it is not to be regarded as a blueprint but rather as a form of action-painting.

I was convinced - and I am so still - that the fundamental principles of Christianity have to be proved true by reasoning, and by no other method. Reason, I said to myself, is given us that we may bring everything within the range of its action, even the most exalted ideas of religion. And this certainty filled me with joy.

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.

Those of our pleasures which come most rarely give the greatest delight.

Query: How to contrive not to waste one's time? Answer: By being fully aware of it all the while. Ways in which this can be done: By spending one's days on an uneasy chair in a dentist's waiting room; by remaining on one's balcony all a Sunday afternoon; by travelling by the longest and least-convenient train routes, and of course standing all the way; by queueing at the box-office of theatres and then not booking a seat.

Even in the important matter of cranial capacity, Men differ more widely from one another than they do from the Apes; while the lowest Apes differ as much, in proportion, from the highest, as the latter does from Man.

The fake love of ressentiment man offers no real help, since for his perverted sense of values, evils like "sickness" and "poverty" have become goods.

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.

To be ignorant of the past is to remain a child.

Scientific men get an awkward habit - no, I won't call it that, for it is a valuable habit - of believing nothing unless there is evidence for it; and they have a way of looking upon belief which is not based upon evidence, not only as illogical, but as immoral.

As long as politics is the shadow cast on society by big business, the attenuation of the shadow will not change the substance.

... it may be hoped that the white population of the world will soon cease to increase. The Asiatic races will be longer, and the negroes still longer, before their birth rate falls sufficiently to make their numbers stable without help of war and pestilence. But it is to be hoped that the religious prejudices which have hitherto hampered the spread of birth control will die out, and that ... the whole world will learn not to be unduly prolific. Until that happens, the benefits aimed at by socialism can only be partially realized, and the less prolific races will have to defend themselves against the more prolific by methods which are disgusting even if they are necessary.

When Eudæmonidas heard a philosopher arguing that only a wise man can be a good general, "This is a wonderful speech," said he; "but he that saith it never heard the sound of trumpets."

The tendency has always been strong to believe that whatever received a name must be an entity or thing, having an independent existence of its own; and if no real entity answering to the name could be found, men did not for that reason suppose that none existed, but imagined that it was something peculiarly abstruse and mysterious, too high to be an object of sense. The meaning of all general, and especially of all abstract terms, became in this way enveloped in a mystical base...

Purity is for man, next to life, the greatest good that parity is procured by the Law of Mazda to him who cleanses his own self with Good Thoughts, Words, and Deeds.

No nobler feeling than this of admiration for one higher than himself dwells in the breast of man. It is to this hour, and at all hours, the vivifying influence in man's life.

Perdiccas threatened to put him to death unless he came to him, "That's nothing wonderful," Diogenes said, "for a beetle or a tarantula would do the same."

We have unmistakable proof that throughout all past time, there has been a ceaseless devouring of the weak by the strong.

When I happen to be busy, I never give a moment's thought to the "meaning" of anything, particularly of whatever it is I am doing. A proof that the secret of everything is in action and not abstention, that fatal cause of consciousness.

Blow the dust off the clock. Your watches are behind the times. Throw open the heavy curtains which are so dear to you - you do not even suspect that the day has already dawned outside.

Men rush to California and Australia as if the true gold were to be found in that direction; but that is to go to the very opposite extreme to where it lies. They go prospecting farther and farther away from the true lead, and are most unfortunate when they think themselves most successful.