If science is not to degenerate into a medley of ad hoc hypotheses, it must become philosophical and must enter upon a thorough criticism of its own foundations.

When the ricochets of atomic billiards chance to put together an object that has a certain, seemingly innocent property, something momentous happens in the universe. That property is an ability to self-replicate; that is, the object is able to use the surrounding materials to make exact copies of itself, including replicas of such minor flaws in copying as may occasionally arise. What will follow from this singular occurrence, anywhere in the universe, is Darwinian selection and hence the baroque extravaganza that, on this planet, we call life. Never were so many facts explained by so few assumptions. Not only does the Darwinian theory command superabundant power to explain. Its economy in doing so has a sinewy elegance, a poetic beauty that outclasses even the most haunting of the world's origin myths. 

The Vedas contain a sensible account of God." "The veneration in which the Vedas are held is itself a remarkable feat. Their code embraced the whole moral life of the Hindus and in such a case there is no other truth than sincerity. Truth is such by reference to the heart of man within, not to any standard without.

It cannot but happen that those individuals whose functions are most out of equilibrium with the modified aggregate of external forces, will be those to die; and that those will survive whose functions happen to be most nearly in equilibrium with the modified aggregate of external forces. But this survival of the fittest, implies multiplication of the fittest. Out of the fittest thus multiplied, there will, as before, be an overthrowing of the moving equilibrium wherever it presents the least opposing force to the new incident force.

The sensuous may be exceedingly distinct, while intellectual concepts are extremely confused. The former we observe in the prototype of sensuous knowledge geometry; the latter, in the organon of all intellectual concepts, metaphysics. It is evident how much toil the latter is expending to dispel the fogs of confusion darkening the common intellect, though not always with the happy success of the former science.

Out from the heart of Nature rolled The burdens of the Bible old.

The best ideas are common property.

The position of the revolutionary party in Germany is certainly difficult at the moment, but, with some critical analysis of the circumstances, clear nevertheless. As to the "governments," it is obvious from every point of view, if only for the sake of Germany's existence, that the demand must be put to them not to remain neutral, but, as you rightly say, to be patriotic. But the revolutionary point is to be given to the affair simply by emphasising the antagonism to Russia more strongly than the antagonism against Boustrapa.

The only thing that we know is that we know nothing - and that is the highest flight of human wisdom.

But yet they that have no Science, are in better, and nobler condition with their naturall Prudence; than men, that by their mis-reasoning, or by trusting them that reason wrong, fall upon false and absurd generall rules.

Much reading after a certain age diverts the mind from its creative pursuits. Any man who reads too much and uses his own brain too little falls into lazy habits of thinking, just as the man who spends too much time in the theaters is apt to be content with living vicariously instead of living his own life.

Rationalism is an adventure in the clarification of thought.

...there are more things to admire in men than to despise.

When we are the victims of illusion we do not feel it to be an illusion but a reality. It is the same perhaps with evil. Evil when we are in its power is not felt as evil but as a necessity, or even a duty.

It is remarkable, that almost all speakers and writers feel it to be incumbent on them, sooner or later, to prove or to acknowledge the personality of God. ... In reading a work on agriculture, we have to skip the author's moral reflections, and the words "Providence" and "He" scattered along the page, to come at the profitable level of what he has to say. What he calls his religion is for the most part offensive to the nostrils. ... There is more religion in men's science than there is science in their religion.

In order that men should embrace the truth - not in the vague way they did in childhood, nor in the one-sided and perverted way presented to them by their religious and scientific teachers, but embrace it as their highest law the complete liberation of this truth from all and every superstition (both pseudo-religious and pseudo-scientific) by which it is still obscured is essential: not a partial, timid attempt, reckoning with traditions sanctified by age and with the habits of the people - not such as was effected in the religious sphere by Guru Nanak, the founder of the sect of the Sikhs, and in the Christian world by Luther, and by similar reformers in other religions - but a fundamental cleansing of religious consciousness from all ancient religious and modern scientific superstitions.

There are many who know many things, yet are lacking in wisdom.

The abolition of private property has become not only possible but absolutely necessary. ... The outcome can only be the victory of the proletariat.

Capitalism has brought about the emancipation of collective humanity with respect to nature. But this collective humanity has itself taken on with respect to the individual the oppressive function formerly exercised by nature.

I fear that the chief Reason why Chymists have written so obscurely of their three Principles, may be, That not having Clear and Distinct Notions of them themselves, they cannot write otherwise then Confusedly of what they but Confusedly Apprehend. Not to say that divers of them, being Conscious to the Invalidity of their Doctrine, might well enough discerne that they could scarce keep themselves from being confuted, but by keeping themselves from being clearly understood.

The role of the artist is to create an Anti-environment as a means of perception and adjustment.

The pragmatic justification is that liberalism is... a political doctrine that seeks to enable societies to govern themselves over diversity. It arose in the minds of thinkers like Thomas Hobbes or John Locke or Samuel Pufendorf... as a result of the European wars of religion following the Protestant Reformation.

Darwin made it possible to be an intellectually fulfilled atheist.

A real reconciliation of East and West is impossible and inconceivable on the basis of a materialistic Communism, or of a materialistic Capitalism, or indeed of a materialistic Socialism. The third way will neither be "anti-Communist" nor "anti-Capitalist". It will recognize the truth in liberal democracy, and it will equally recognize the truth in Communism. A critique of Communism and Marxism does not entail an enmity towards Soviet Russia, just as a critique of liberal democracy is not entail enmity towards the west. ... But the final and most important justification of a "third way" is that there must be a place from which we may boldly testify to, and proclaim, truth, love and justice. No one today likes truth: utility and self interest have long ago been substituted for truth.

There are people with whom everything they consider a means turns mysteriously into an end.

When I made my theoretical model, I could not have guessed that people would try to realise it with Molotov cocktails.

The only justifiable stopping place for the expansion of altruism is the point at which all whose welfare can be affected by our actions are included within the circle of altruism. This means that all beings with the capacity to feel pleasure or pain should be included; we can improve their welfare by increasing their pleasures and diminishing their pains.

Would not all we mean by "communication between mind and mind" be provided for if we suppose that common knowledge comes about, not from our explaining things to one another, but from things explaining themselves in the same terms to us all? Accepting the object as its own interpreter, as its own "medium of communication," do we not begin to understand what is utterly dark on any other view, how it comes to pass that the resulting knowledge is a common possession?

This realistic image, however, does not catch at all what really is, but what should not be - death and misery - what should not exist, from our moral and humanistic point of view. And at the same time making an aesthetic and commercial, perfectly immoral use and abuse of this misery. Images that actually testify, behind their pretended "objectivity", of a deep denial of the real, and of an equal denial of the image - assigned to present what does not even want to be represented, assigned to the rape of the real by burglary.

Be attentive therefore, according to the instruction of the Gospel, to learn obedience from the lily and the bird. Be not affrighted, do no despair, when thou comparest thy life with these teachers. There is nothing to despair about, for indeed thou shalt learn from them; and the Gospel first comforts thee by telling thee that God is the God of patience, and then it adds: 'Thou shalt learn from the lilies and the birds, learn to be absolutely obedient like the lilies and the birds, learn not to serve two masters; for no man can serve two masters, he must either ... or.

I am my world.

For such is the nature of men, that howsoever they may acknowledge many others to be more witty, or more eloquent, or more learned; Yet they will hardly believe there be many so wise as themselves: For they see their own wit at hand, and other men's at a distance.

Some of your hurts you have cured, And the sharpest you still have survived, But what torments of grief you endured From evils which never arrived!

We ought to acquiesce in the reasoning of the Egyptian priests, who raise altars to the Sun conjointly with Jupiter; nay, rather we should assent to Apollo himself (long before them), who sits on the same throne with Jove, and whose words are,

When will the world learn that a million men are of no importance compared with one man?

He [the child] does not despise real woods because he has read of enchanted woods: the reading makes all real woods a little enchanted.

The result of toppling tyranny in divided countries is usually civil war and ethnic cleansing.

Lamarck, sagacious as many of his views were, mingled them with so much that was crude and even absurd, as to neutralize the benefit which his originality might have effected had he been a more sober and cautious thinker…

Nothing like a little judicious levity.

Wealth brings a heavy purse; poverty, a light spirit.

All large political questions are at bottom economic questions.

In America a woman loses her independence for ever in the bonds of matrimony. While there is less constraint on girls there than anywhere else, a wife submits to stricter obligations. For the former, her father's house is a home of freedom and pleasure; for the latter, her husband's is almost a cloister.

Essentially the fault lies in the fact that the democratic political process is at best regulated rivalry; it does not even in theory have the desirable properties that price theory ascribes to truly competitive markets.