Our design, not respecting arts, but philosophy, and our subject, not manual, but natural powers, we consider chiefly those things which relate to gravity, levity, elastic force, the resistance of fluids, and the like forces, whether attractive or impulsive; and therefore we offer this work as mathematical principles of philosophy; for all the difficulty of philosophy seems to consist in this - from the phenomena of motions to investigate the forces of nature, and then from these forces to demonstrate the other phenomena...

How can you reach the womb of the Abyss to make it fruitful? This cannot be expressed, cannot be narrowed into words, cannot be subjected to laws; every man is completely free and has his own special liberation. No form of instruction exists, no Savior exists to open up the road. No road exists to be opened.

I speak as a biologist. There aren't many absolutely clear distinctions in biology. Mostly what we have is a spectrum. But the male-female divide is exceptional in biology. It really is a true binary.

The vices respectively fall short of or exceed what is right in both passions and actions, while virtue both finds and chooses that which is intermediate.

Once when Phocion had delivered an opinion which pleased the people,... he turned to his friend and said, "Have I not unawares spoken some mischievous thing or other?"

In their nomination to office they will not appoint to the exercise of authority as to a pitiful job, but as to a holy function.

In any case, if you ever leave me with a handsome man, do not tell me that you trust me because, let me warn you: that is not what will prevent me from deceiving you, if I want to. On the contrary.

Everywhere we seek the Absolute, and always we find only things.

You must acquire the best knowledge first, and without delay; it is the height of madness to learn what you will later have to unlearn.

Systems, scientific and philosophic, come and go. Each method of limited understanding is at length exhausted. In its prime each system is a triumphant success: in its decay it is an obstructive nuisance.

Shamed, dishonored, wading in blood and dripping with filth, thus capitalist society stands. Not as we usually see it, playing the roles of peace and righteousness, of order, of philosophy, of ethics - as a roaring beast, as an orgy of anarchy, as a pestilential breath, devastating culture and humanity - so it appears in all its hideous nakedness.

Choose what's best.-Best is what benefits me.

It is, therefore, quite natural that the churches have always fought against science and have persecuted its supporters. But, on the other hand, I assert that the cosmic religious experience is the strongest and noblest driving force behind scientific research. No one who does not appreciate the terrific exertions, and, above all, the devotion without which pioneer creations in scientific thought cannot come into being, can judge the strength of the feeling out of which alone such work, turned away as it is from immediate practical life, can grow. What a deep faith in the rationality of the structure of the world and what a longing to understand even a small glimpse of the reason revealed in the world there must have been in Kepler and Newton to enable them to unravel the mechanism of the heavens in long years of lonely work! Any one who only knows scientific research in its practical applications may easily come to a wrong interpretation of the state of mind of the men who, surrounded by skeptical contemporaries, have shown the way to kindred spirits scattered over all countries in all centuries. Only those who have dedicated their lives to similar ends can have a living conception of the inspiration which gave these men the power to remain loyal to their purpose in spite of countless failures. It is the cosmic religious sense which grants this power. A contemporary has rightly said that the only deeply religious people of our largely materialistic age are the earnest men of research.

I must confess that I am deeply troubled. I fear that human beings are intent upon acting out a vast deathwish and that it lies with us now to make every effort to promote resistance to the insanity and brutality of policies which encompass the extermination of hundreds of millions of human beings.

Where the preamble declares, that coercion is a departure from the plan of the holy author of our religion, an amendment was proposed by inserting "Jesus Christ," so that it would read "A departure from the plan of Jesus Christ, the holy author of our religion;" the insertion was rejected by the great majority, in proof that they meant to comprehend, within the mantle of its protection, the Jew and the Gentile, the Christian and Mohammedan, the Hindoo and Infidel of every denomination.

The man who comes back through the Door in the Wall will never be quite the same as the man who went out. He will be wiser but less cocksure, happier but less self-satisfied, humbler in acknowledging his ignorance yet better equipped to understand the relationship of words to things, of systematic reasoning to the unfathomable Mystery which it tries, forever vainly, to comprehend.

This world is but canvas to our imaginations.

The venerability, reliability, and utility of truth is something which a person demonstrates for himself from the contrast with the liar, whom no one trusts and everyone excludes. As a "rational" being, he now places his behavior under the control of abstractions. He will no longer tolerate being carried away by sudden impressions, by intuitions.

Every noble crown is, and on earth will forever be, a crown of thorns.

We must consider both the ultimate end and all clear sensory evidence, to which we refer our opinions; for otherwise everything will be full of uncertainty and confusion.

National loyalty involves a love of home and a preparedness to defend it; nationalism is a belligerent ideology, which uses national symbols in order to conscript the people to war.

Philosophers should consider the fact that the greatest happiness principle can easily be made an excuse for a benevolent dictatorship. We should replace it by a more modest and more realistic principle - the principle that the fight against avoidable misery should be a recognized aim of public policy, while the increase of happiness should be left, in the main, to private initiative.

He who first shortened the labor of copyists by device of movable types was disbanding hired armies, and cashiering most kings and senates, and creating a whole new democratic world: he had invented the art of printing.

If the only alternative to fascism we produce is a corporate-driven, milquetoast, neoliberal Democratic Party, fascism will come to America. Let us be very clear. It's like a Weimar America.

I will destroy this house, and no one will be able to build it....

I had wished to visit a slaughter-house, in order to see with my own eyes the reality of the question raised when vegetarianism is discussed. But at first I felt ashamed to do so, as one is always ashamed of going to look at suffering which one knows is about to take place, but which one cannot avert; and so I kept putting off my visit. But a little while ago I met on the road a butcher ... He is not yet an experienced butcher, and his duty is to stab with a knife. I asked him whether he did not feel sorry for the animals that he killed. He gave me the usual answer: 'Why should I feel sorry? It is necessary.' But when I told him that eating flesh is not necessary, but is only a luxury, he agreed; and then he admitted that he was sorry for the animals.

If A were not allowed his better position, B would be even worse off than he is.

Jews hate the name of Christ and have a secret and innate rancor against the people among whom they live.

Apart from autograph hunters, I get... many letters from Hindus, beseeching me to adopt some form of mysticism, from young Americans, asking me where I think the line should be drawn in petting, and from Poles, urging me to admit that while all other nationalism may be bad that of Poland is wholly noble. I get letters from engineers who cannot understand Einstein, and from parsons who think that I cannot understand Genesis, from husbands whose wives have deserted them - not (they say) that that would matter, but the wives have taken the furniture with them, and what in these circumstances should an enlightened male do? ...I get letters (concerning whose genuineness I am suspicious) trying to get me to advocate abortion, and I get letters from young mothers asking my opinion of bottle-feeding.

Political questions are far too serious to be left to the politicians.

We have here a question of difficulty, analogous to the question of nominalism and realism.

We await the Indian thinker who will expound to us the mysticism of spiritual union with infinite Being as it is in itself, not as it is set down in the ancient texts or according to the meaning read into them by their interpreters. It belongs to the nature of mysticism that it is timeless and appeals to no other authority than that of the truth which it carries within it. The pathway from imperfect to perfect recognised truth leads through the valley of reality.

He who upholds Truth with all the might of his power, He who upholds Truth the utmost in his word and deed,He, indeed, is Thy most valued helper, O Mazda Ahura!

Not to be loved is a misfortune, but it is an insult to be loved no longer.

To one who asked what was the proper time for lunch, he said, "If a rich man, when you will; if a poor man, when you can."

Tell your master that if there were as many devils at Worms as tiles on its roofs, I would enter.

We are born to exist, not to know, to be, not to assert ourselves.

And love, above all when it struggles against destiny, overwhelms us with the feeling of the vanity of this world of appearances and gives us a glimpse of another world, in which destiny is overcome and liberty is law.

At bottom, as was said above, we are to consider Luther as a Prophet Idol-breaker; a bringer-back of men to reality. It is the function of great men and teachers.

Society in shipwreck is a comfort to all.

Might is a fine thing, and useful for many purposes; for 'one goes further with a handful of might than with a bagful of right'. You long for freedom? You fools! If you took might, freedom would come of itself. See, he who has might 'stands above the law'. How does this prospect taste to you, you 'law-abiding' people? But you have no taste!

For a writer, to change languages is to write a love letter with a dictionary.

My sympathies are, of course, with the Government side, especially the Anarchists; for Anarchism seems to me more likely to lead to desirable social change than highly centralized, dictatorial Communism.