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.

The first-beginnings of things cannot be seen by the eyes.

Science fiction offers its writers chances of embarrassment that no other form of fiction does.

I am an American, Chicago born - Chicago, that somber city - and go at things as I have taught myself, free-style, and will make the record in my own way: first to knock, first admitted; sometimes an innocent knock, sometimes a not so innocent.

What can only be taught by the rod and with blows will not lead to much good; they will not remain pious any longer than the rod is behind them.

Poetry is one of the destinies of speech.... One would say that the poetic image, in its newness, opens a future to language.

God is not needed to create guilt or to punish. Our fellow men suffice, aided by ourselves.

Through laziness and cowardice a large part of mankind, even after nature has freed them from alien guidance, gladly remain immature. It is because of laziness and cowardice that it is so easy for others to usurp the role of guardians. It is so comfortable to be a minor!

We should never take pleasure in causing pain to others, even to those who have wronged us, but rather strive to do good to all.

Though I myself am an atheist, I openly profess religion in the sense just mentioned, that is, a nature religion. I hate the idealism that wrenches man out of nature; I am not ashamed of my dependency on nature; I openly confess that the workings of nature affect not only my surface, my skin, my body, but also my core, my innermost being, that the air I breathe in bright weather has a salutary effect not only on my lungs but also on my mind, that the light of the sun illumines not only my eyes but also my spirit and my heart. And I do not, like a Christian, believe that such dependency is contrary to my true being or hope to be delivered from it. I know further that I am a finite moral being, that I shall one day cease to be. But I find this very natural and am therefore perfectly reconciled to the thought.

Every presentation of philosophy, whether oral or written, is to be taken and can only be taken in the sense of a means. Every system is only an expression or image of reason, and hence only an object of reason, an object which reason-a living power that procreates itself in new thinking beings-distinguishes from itself and posits as an object of criticism. Every system that is not recognized and appropriated as just a means, limits and warps the mind for it sets up the indirect and formal thought in the place of the direct, original and material thought.

The true test of civilization is, not the census, nor the size of the cities, nor the crops - no, but the kind of man the country turns out.

Too little liberty brings stagnation, and too much brings chaos.

Bitter for a free man is the bondage of debt.

Not because Socrates said so,... I look upon all men as my compatriots.

It is very likely that there are many, many planets carrying life, even intelligent life, throughout the universe, because there are so many stars. By sheer chance, even if those chances are small, a great many life forms and a great many intelligences may exist.

Art is a jealous mistress.

The painter is turning his eyes towards us only in so far as we happen to occupy the same position as his subject. We, the spectators, are an additional factor. Though greeted by that gaze, we are also dismissed by it, replaced by that which was always there before we were: the model itself. But, inversely, the painter's gaze, addressed to the void confronting him outside the picture, accepts as many models as there are spectators; in this precise but neutral place, the observer and the observed take part in a ceaseless exchange.

Wilt thou seal up the avenues of ill? Pay every debt as if God wrote the bill.

I maintain that in every special natural doctrine only so much science proper is to be met with as mathematics; for... science proper, especially of nature, requires a pure portion, lying at the foundation of the empirical, and based upon à priori knowledge of natural things. ...the conception should be constructed. But the cognition of the reason through construction of conceptions is mathematical. A pure philosophy of nature in general, namely, one that only investigates what constitutes a nature in general, may thus be possible without mathematics; but a pure doctrine of nature respecting determinate natural things (corporeal doctrine and mental doctrine), is only possible by means of mathematics; and as in every natural doctrine only so much science proper is to be met with therein as there is cognition à priori, a doctrine of nature can only contain so much science proper as there is in it of applied mathematics.

Nonviolent forms of resistance can and must be aggressively pursued. A practice of aggressive nonviolence is, therefore, not a contradiction in terms. Mahatma Gandhi insisted that satyagraha, or "soul force," his name for a practice and politics of nonviolence, is a nonviolent force, one that consists at once of an "insistence on truth ... that arms the votary with matchless power." To understand this force or strength, there can be no simple reduction to physical strength. At the same time, "soul force" takes an embodied form. The practice of "going limp" before political power is, on the one hand, a passive posture, and is thought to belong to the tradition of passive resistance; at the same time, it is a deliberate way of exposing the body to police power, of entering the field of violence, and of exercising an adamant and embodied form of political agency. It requires suffering, yes, but for the purposes of transforming both oneself and social reality.

Food probably has a very great influence on the condition of men. Wine exercises a more visible influence, food does it more slowly but perhaps just as surely. Who knows if a well-prepared soup was not responsible for the pneumatic pump or a poor one for a war?

The victory of vivisection marks a great advance in the triumph of ruthless, non-moral utilitarianism over the old world of ethical law; a triumph in which we, as well as animals, are already the victims, and of which Dachau and Hiroshima mark the more recent achievements.

Close thy Byron; open thy Goethe.

In that strange island Iceland,-burst up, the geologists say, by fire from the bottom of the sea; a wild land of barrenness and lava; swallowed many months of every year in black tempests, yet with a wild gleaming beauty in summertime; towering up there, stern and grim, in the North Ocean with its snow jokuls, roaring geysers, sulphur-pools and horrid volcanic chasms, like the waste chaotic battle-field of Frost and Fire;-where of all places we least looked for Literature or written memorials, the record of these things was written down.

Domination has its own aesthetics, and democratic domination has its democratic aesthetics.

Within the last half century, the labours of such men as Von Baer, Rathke, Reichert, Bischof, and Remak, have almost completely unravelled... the successive stages of development which... are now as well known to the embryologist as are the steps of the metamorphosis of the silk-worm moth to the school boy.

As soon as a thought or word becomes a tool, one can dispense with actually 'thinking' it, that is, with going through the logical acts involved in verbal formulation of it. As has been pointed out, often and correctly, the advantage of mathematics-the model of all neo-positivistic thinking-lies in just this 'intellectual economy.' Complicated logical operations are carried out without actual performance of the intellectual acts upon which the mathematical and logical symbols are based. ... Reason ... becomes a fetish, a magic entity that is accepted rather than intellectually experienced.

Nature too remains, so far as we have yet come, ever a frightful Machine of Death: everywhere monstrous revolution, inexplicable vortices of movement; a kingdom of Devouring, of the maddest tyranny; a baleful Immense: the few light-points disclose but a so much the more appalling Night, and terrors of all sorts must palsy every observer.

That which had grown from the earth, to the earth, But that which has sprung from heavenly seed, Back to the heavenly realms returns. This is either a dissolution of the mutual involution of the atoms, or a similar dispersion of the unsentient elements.

The ideology of development has implied the globalization of the priorities, patterns, and prejudices of the West. Instead of self-generated, development is imposed. Instead of coming from within, it is externally guided. Instead of contributing to the maintenance of diversity, development has created homogeneity...

A propensity to hope and joy is real riches: One to fear and sorrow, real poverty.

What a hell of an economic system! Some are replete with everything while others, whose stomachs are no less demanding, whose hunger is just as recurrent, have nothing to bite on. The worst of it is the constrained posture need puts you in. The needy man does not walk like the rest; he skips, slithers, twists, crawls.

Don't for heaven's sake, be afraid of talking nonsense! But you must pay attention to your nonsense.

Haikus allow the whole world to appear within things.

We shall, therefore, assume the complete physical equivalence of a gravitational field and a corresponding acceleration of the reference system.

I have only two rules which I regard as principles of conduct. The first is: Have no rules. The second is: Be independent of the opinion of others.

Reverence for life, veneratio vitæ, is the most direct and at the same time the profoundest achievement of my will-to-live. In reverence for life my knowledge passes into experience. The simple world- and life-affirmation which is within me just because I am will-to-live has, therefore, no need to enter into controversy with itself, if my will-to-live learns to think and yet does not understand the meaning of the world. In spite of the negative results of knowledge, I have to hold fast to world- and life-affirmation and deepen it. My life carries its own meaning in itself. This meaning lies in my living out the highest idea which shows itself in my will-to-live, the idea of reverence for life. With that for a starting-point I give value to my own life and to all the will-to-live which surrounds me, I persevere in activity, and I produce values.

Universal Humanism:

1) Preserve Life (end)

Precludes those who think they get to decide who lives and who dies.

2) Avoid and limit suffering (means)

Precludes those who use absurd exceptions to turn their backs on functional rules.

It will be said, "Patriotism has welded mankind into states, and maintains the unity of states." But men are now united in states; that work is done; why now maintain exclusive devotion to one's own state, when this produces terrible evils for all states and nations? For this same patriotism which welded mankind into states is now destroying those same states. If there were but one patriotism say of the English only then it were possible to regard that as conciliatory, or beneficent. But when, as now, there is American patriotism, English, German, French, Russian, all opposed to one another, in this event, patriotism no longer unites, but disunites.

As long as the state is a political entity this requirement for internal peace compels it in critical situations to decide also upon the domestic enemy. Every state provides, therefore, some kind of formula for the declaration of an internal enemy.

Because people have no thoughts to deal in, they deal cards, and try and win one another's money. Idiots!

For love is ever the beginning of Knowledge, as fire is of light.

Furthermore, the monad produces itself and is produced from itself, since it is self-sufficient and has no power set over it and is everlasting; and it is evidently the cause of permanence, just as God is thought to be in the case of actual physical things, and to be the preserver and maintainer of natures.