Life was given to me as a favor, so I may abandon it when it is one no longer.

The world would be astonished if it knew how great a proportion of its brightest ornaments-of those most distinguished even in popular estimation for wisdom and virtue-are complete sceptics in religion...

As it has long been and shall be, not ever, I think, will unfathomable time be emptied of either. This quote refers to Love and Strife, the fundamental opposing and ordering forces in Empedocles' model of the cosmos.

To have no food for our heads no food for our hearts, no food for our activity, is that nothing? If we have no food for the body, how do we cry out, how all the world hears of it, how all the newspapers talk of it, with a paragraph headed in great capital letters, DEATH FROM STARVATION! But suppose one were to put a paragraph in the Times, Death of Thought from Starvation, or Death of Moral Activity from Starvation, how people would stare, how they would laugh and wonder! One would think we had no heads nor hearts, by the total indifference of the public towards them. Our bodies are the only things of any consequence.

Rather than trying to escape violence, human beings more often become habituated to it. History abounds with long conflicts - the Thirty Years' War in early seventeenth-century Europe, the Time of Troubles in Russia, twentieth-century guerrilla conflicts - in which continuous slaughter has been accepted as normal. Famously adaptable, the human animal quickly learns to live with violence and soon comes to find satisfaction in it.

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.

Those who promise us paradise on earth never produced anything but a hell.

A civilization is a social entity that manifests religious, political , legal, and customary uniformity over an extended period, and which confers on its members the benefits of socially accumulated knowledge.

Only the idiot is equipped to breathe.

The word of man is the most durable of all material.

I believe that man is the product of natural evolution that is born from the conflict of being a prisoner and separated from nature, and from the need to find unity and harmony with it.

A philosophical attempt to work out a universal history according to a natural plan directed to achieving the civic union of the human race must be regarded as possible and, indeed, as contributing to this end of Nature.

In summary, then, the set theoretic 'needs' of physics are surprisingly similar to the set theoretic needs of pure logic. Both disciplines need some set theory to function at all. Both disciplines can 'live' - but live badly - on the meager diet of only predicative sets. Both can live extremely happily on the rich diet of impredicative sets. Insofar, then, as the indispensability of quantification over sets is any argument for their existence - and we will discuss why it is in the next section - we may say that it is a strong argument for the existence of at least predicative sets, and a pretty strong, but not as strong, argument for the existence of impredicative sets.

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

Who looks in the sun will see no light else; but also he will see no shadow. Our life revolves unceasingly, but the centre is ever the same, and the wise will regard only the seasons of the soul.

The general co-operation of all members of society for the purpose of planned exploitation of the forces of production, the expansion of production to the point where it will satisfy the needs of all, the abolition of a situation in which the needs of some are satisfied at the expense of the needs of others, the complete liquidation of classes and their conflicts, the rounded development of the capacities of all members of society through the elimination of the present division of labor, through industrial education, through engaging in varying activities, through the participation by all in the enjoyments produced by all, through the combination of city and country - these are the main consequences of the abolition of private property.

There are two kinds of people, killers, and everybody else.

I was a solitary, shy, priggish youth. I had no experience of the social pleasures of boyhood and did not miss them. But I liked mathematics, and mathematics was suspect because it has no ethical content. I came also to disagree with the theological opinions of my family, and as I grew up I became increasingly interested in philosophy, of which they profoundly disapproved. Every time the subject came up they repeated with unfailing regularity, 'What is mind? No matter. What is matter? Never mind.' After some fifty or sixty repetitions, this remark ceased to amuse me.

The point, as Marx saw it, is that dreams never come true.

To revolt is a natural tendency of life. Even a worm turns against the foot that crushes it. In general, the vitality and relative dignity of an animal can be measured by the intensity of its instinct to revolt.

No tyranny is more cruel than the one practiced in the shadow of the laws and under color of justice - when, so to speak, one proceeds to drown the unfortunate on the very plank by which they had saved themselves.

The observer, when he seems to himself to be observing a stone, is really, if physics is to be believed, observing the effects of the stone upon himself.

The commodity is first of all, an external object, a thing which through its qualities satisfies human needs of whatever kind. The nature of these needs, whether they arise, for example, from the stomach, or the imagination, makes no difference. Nor does it matter here how the thing satisfies man's need, whether directly as a means of subsistence, i.e. an object of consumption, or indirectly as a means of production.

Everyone feels benevolent if nothing happens to be annoying him at the moment.

For what is modesty but hypocritical humility, by means of which, in a world swelling with vile envy, a man seeks to beg pardon for his excellences and merits from those who have none? For whoever attributes no merit to himself because he really has none is not modest, but merely honest.

Reality is harsh to the feet of shadows.

Without effort and change, human life cannot remain good. It is not a finished Utopia that we ought to desire, but a world where imagination and hope are alive and active.

The deadliest enemies of nations are not their foreign foes; they always dwell within their borders. And from these internal enemies civilization is always in need of being saved. The nation blest above all nations is she in whom the civic genius of the people does the saving day by day, by acts without external picturesqueness; by speaking, writing, voting reasonably; by smiting corruption swiftly; by good temper between parties; by the people knowing true men when they see them, and preferring them as leaders to rabid partisans or empty quacks.

The rudest heathen that worshipped Canopus, or the Caabah Black-Stone, he, as we saw, was superior to the horse that worshipped nothing at all! Nay there was a kind of lasting merit in that poor act of his; analogous to what is still meritorious in Poets: recognition of a certain endless divine beauty and significance in stars and all natural objects whatsoever.

Whoever heard me assert that the grey cat playing just now in the yard is the same one that did jumps and tricks there five hundred years ago will think whatever he likes of me, but it is a stranger form of madness to imagine that the present-day cat is fundamentally an entirely different one.

In the study of ideas, it is necessary to remember that insistence on hard-headed clarity issues from sentimental feeling, as if it were a mist, cloaking the perplexities of fact. Insistence on clarity at all costs is based on sheer superstition as to the mode in which human intelligence functions. Our reasoning grasps at straws for premises and floats on gossamer for deductions.

Children and fools speak the truth; and somehow they find happiness in their sincerity.

Thus Mr. Sale informs me, the old Arab Tribes would gather in liveliest gaudeamus, and sing, and kindle bonfires, and wreathe crowns of honour, and solemnly thank the gods that, in their Tribe too, a Poet had shewn himself. As indeed they well might; for what usefuller, I say not nobler and heavenlier thing could the gods, doing their very kindest, send to any Tribe or Nation, in any time or circumstances?

Tyrants seldom want pretexts.

To farm is to be placed absolutely.

The modern state, in its essence and objectives, is necessarily a military state, and a military state necessarily becomes an aggressive state. If it does not conquer others it will itself be conquered, for the simple reason that wherever force exists, it absolutely must be displayed or put into action. From this again it follows that the modern state must without fail be huge and powerful; that is the indispensable condition for its preservation.

The world is his, who has money to go over it.

In the Thirty Years' War... a third of the population of central Europe were killed in a bloody struggle between different Christian religious sects, and the pragmatic part of liberalism was to take final ends [defined by religions] out of political discussion... and to lower the sights of politics to defend life itself, and not "the good life"... as defined by a particular sect of a particular religion.

Men never do good unless necessity drives them to it; but when they are free to choose and can do just as they please, confusion and disorder become rampant.

Be substantially great in thyself, and more than thou appearest unto others.

Among Latin writers, the acceptations of the word nature are so many, that I remember, one author reckons up no less than fourteen or fifteen. Hence we see how easy 'tis for the generality of men, without excepting those who write of natural things, to impose upon others and themselves, in the use of a word so apt to be mis-employ'd. ..the very great ambiguity of this term, and the promiscuous use made of it, without sufficiently attending to its different significations, render many of the expressions wherein 'tis employ'd either unintelligible, improper, or false.

Natural selection is like artificial selection, but without the human chooser. Instead of a human deciding which offspring shall die in which shall reproduce, nature 'decides'. The quotation marks are vital because nature doesn't consciously decide. This might seem too obvious to emphasize, but you'd be surprised by the number of people who think natural selection implies some kind of personal choice. They couldn't be more wrong. It just is the case that some offspring are more likely to die while others have what it takes to survive and reproduce. Therefore, as the generations go by, the average, typical creature in the population becomes ever better at the arts of surviving and reproducing. Ever better, I should specify, when, when measured against some absolute standard.

I thought that the only action a man could perform without shame was to take his life; that he had no right to diminish himself in the succession of days and the inertic of misery. No elect, I kept telling myself, but those who committed suicide.

Conversion is in its essence a normal adolescent phenomenon, incidental to the passage from the child's small universe to the wider intellectual and spiritual life of maturity.

The Communists disdain to conceal their views and aims. They openly declare that their ends can be attained only by the forcible overthrow of all existing social conditions. Let the ruling classes tremble at a Communistic revolution. The proletarians have nothing to lose but their chains. They have a world to win. WORKING MEN OF ALL COUNTRIES, UNITE!