A trifling debt makes a man your debtor; a large one makes him an enemy.

It is the mind that maketh good or ill, That maketh wretch or happy, rich or poor.

Violence, less and less embarrassed by the limits imposed by centuries of lawfulness, is brazenly and victoriously striding across the whole world, unconcerned that its infertility has been demonstrated and proved many times in history. What is more, it is not simply crude power that triumphs abroad, but its exultant justification. The world is being inundated by the brazen conviction that power can do anything, justice nothing.

For it is not death or pain that is to be feared, but the fear of pain or death.

We call that fire of the black thunder-cloud "electricity," and lecture learnedly about it, and grind the like of it out of glass and silk: but what is it? What made it? Whence comes it? Whither goes it? Science has done much for us; but it is a poor science that would hide from us the great deep sacred infinitude of Nescience, whither we can never penetrate, on which all science swims as a mere superficial film. This world, after all our science and sciences, is still a miracle; wonderful, inscrutable, magical and more, to whosoever will think of it.

Life is one long struggle in the dark.

Orb webs in real life do their business largely in two dimensions. If the mesh is too coarse, flies pass straight through. If the mesh is too fine, rival spiders will achieve nearly the same result at less cost in silk, and will therefore leave behind more progeny to carry on their economically more prudent genes. Natural selection finds the efficient compromise.

By scientific thought we mean the application of past experience to new circumstances by means of an observed order of events. By saying that this order of events is exact we mean that it is exact enough to correct experiments by, but we do not mean that it is theoretically or absolutely exact, because we do not know. The process of inference [is] in itself an assumption of uniformity, and... as the known exactness of the uniformity became greater, the stringency of the inference [is] increased. By saying that the order of events is reasonable we do not mean that everything has a purpose, or that everything can be explained, or that everything has a cause; for neither of these is true. But we mean that to every reasonable question there is an intelligible answer, which either we or posterity may know by the exercise of scientific thought.

Progress in civilization seems possible only in interludes when history is idling.

The theory of transparency was set up in reaction to the theory of mental images, of an inner tableu which the perception of an object would leave in us. In imagination our gaze always goes outward, but imagination modifies and neutralizes the gaze: the real world appears in it as it were between parenthesis or quote marks.

The very man who has argued you down will sometimes be found, years later, to have been influenced by what you said.

Certain success evicts one from the paradise of winning against the odds.

Unlike private enterprise which quickly modifies its actions to meet emergencies - unlike the shopkeeper who promptly finds the wherewith to satisfy a sudden demand - unlike the railway company which doubles its trains to carry a special influx of passengers; the law-made instrumentality lumbers on under all varieties of circumstances at its habitual rate. By its very nature it is fitted only for average requirements, and inevitably fails under unusual requirements.

Let us try to teach generosity and altruism, because we are born selfish. Let us understand what our own selfish genes are up to, because we may then at least have a chance to upset their designs, something that no other species has ever aspired to do.

Few men think; yet all have opinions.

The Idols of Tribe have their foundation in human nature itself, and in the tribe or race of men. For it is a false assertion that the sense of man is the measure of things. On the contrary, all perceptions as well of the sense as of the mind are according to the measure of the individual and not according to the measure of the universe. And the human understanding is like a false mirror, which, receiving rays irregularly, distorts and discolors the nature of things by mingling its own nature with it.

The wisest among us is very lucky never to have met the woman, be she beautiful or ugly, intelligent or stupid, who could drive him crazy enough to be fit to be put into an asylum.

Jesus said that God was not the God of the dead, but of the living. And the other life is not, in fact, thinkable to us except under the same forms as those of this earthly and transitory life.

I do not believe that woman will make politics worse; nor can I believe that she could make it better. If, then, she cannot improve on man's mistakes, why perpetrate the latter?

I should like to believe my people's religion, which was just what I could wish, but alas, it is impossible. I have really no religion, for my God, being a spirit shown merely by reason to exist, his properties utterly unknown, is no help to my life. I have not the parson's comfortable doctrine that every good action has its reward, and every sin is forgiven. My whole religion is this: do every duty, and expect no reward for it, either here or hereafter.

In brief, it is my thesis that human misery is the most urgent problem of a rational public policy and that happiness is not such a problem.

Near-ubiquitous technological monitoring is a consequence of the decline of cohesive societies that has occurred alongside the rising demand for individual freedom.

When I speak of 'negative dialectics' not the least important reason for doing so is my desire to dissociate myself from this fetishization of the positive.

Of all the things that are beyond my power, I value nothing more highly than to be allowed the honor of entering into bonds of friendship with people who sincerely love truth. For, of things beyond our power, I believe there is nothing in the world which we can love with tranquility except such men.

If you try to imagine, as nearly as you can, what an amount of misery, pain and suffering of every kind the sun shines upon in its course, you will admit that it would be much better if, on the earth as little as on the moon, the sun were able to call forth the phenomena of life; and if, here as there, the surface were still in a crystalline state.

Have patience awhile; slanders are not long-lived. Truth is the child of time; erelong she shall appear to vindicate thee.

Knowledge can in part be set aside, and one can then go further in order to collect new; the natural scientist can set aside insects and flowers and then go further, but if the existing person sets aside the decision in existence, it is eo ipso lost, and he is changed.

That mysterious independent variable of political calculation, Public Opinion.

I feel that these old Northmen wore looking into Nature with open eye and soul: most earnest, honest; childlike, and yet manlike; with a great-hearted simplicity and depth and freshness, in a true, loving, admiring, unfearing way.

The retinue of a grandee in China or Indostan accordingly is, by all accounts, much more numerous and splendid than that of the richest subjects of Europe.

The facts of science, as they appeared to him [Heraclitus], fed the flame in his soul, and in its light, he saw into the depths of the world.

We have lived by the assumption that what was good for us would be good for the world. ... We have been wrong. We must change our lives, so that it will be possible to live by the contrary assumption that what is good for the world will be good for us. . . We must recover the sense of the majesty of the creation and the ability to be worshipful in its presence. For it is only on the condition of humility and reverence before the world that our species will be able to remain in it.

Boredom is a larval anxiety; depression, a dreamy hatred.

Seek first the virtues of the mind; and other things either will come, or will not be wanted.

Declining from the public ways, walk in unfrequented paths.

We never repent of having eaten too little.

He who helps the guilty, shares the crime.

Since the working-class lives from hand to mouth, it buys as long as it has the means to buy.

You can take away a man's gods, but only to give him others in return.

How are we to adjudicate among rival ontologies? Certainly the answer is not provided by the semantical formula "To be is to be the value of a variable"; this formula serves rather, conversely, in testing the conformity of a given remark or doctrine to a prior ontological standard.

Great men are they who see that spiritual is stronger than any material force, that thoughts rule the world. No hope so bright but is the beginning of its own fulfillment. 

All natural capacities of a creature are destined to evolve completely to their natural end. First Thesis Variant translations: All natural capacities of a creature are destined sooner or later to be developed completely and in conformity with their end. All natural capacities of a creature are destined to develop themselves completely and to their purpose.

The man that does not know himself not to be at the mercy of other men, that does not feel that he is invulnerable to all the vicissitudes of fortune, is incapable of a constant and inflexible virtue.

Let no act be done at haphazard, nor otherwise than according to the finished rules that govern its kind.

By reducing any quality to quantity, myth economizes intelligence: it understands reality more cheaply.