Eternal vigilance is the price of knowledge.

Why dost thou not pray... to give thee the faculty of not fearing any of the things which thou fearest, or of not desiring any of the things which thou desirest, or not being pained at anything, rather than pray that any of these things should not happen or happen?

Buddhism ... is not a culture but a critique of culture, an enduring nonviolent revolution or "loyal opposition" to the culture in which it is involved.

Consider MacArthur and his Republican supporters. So limited is his intelligence and his imagination that he is never puzzled for one moment. All we have to do is to go back to the days of the Opium War. After we have killed a sufficient number of millions of Chinese, the survivors among them will perceive our moral superiority and hail MacArthur as a saviour. But let us not be one-sided. Stalin, I should say, is equally simple- minded and equally out of date. He, too, believes that if his armies could occupy Britain and reduce us all to the economic level of Soviet peasants and the political level of convicts, we should hail him as a great deliverer and bless the day when we were freed from the shackles of democracy. One of the painful things about our time is that those who feel certainty are stupid, and those with any imagination and understanding are filled with doubt and indecision.

We distinguish diagrammatic from sentential paper-and-pencil representations of information by developing alternative models of information-processing systems that are informationally equivalent and that can be characterized as sentential or diagrammatic. Sentential representations are sequential, like the propositions in a text. Diagrammatic representations are indexed by location in a plane. Diagrammatic representations also typically display information that is only implicit in sentential representations and that therefore has to be computed, sometimes at great cost, to make it explicit for use. We then contrast the computational efficiency of these representations for solving several.illustrative problems in mathematics and physics.

God only pours out his light into the mind after having subdued the rebellion of the will by an altogether heavenly gentleness which charms and wins it.

Unless man have a natural bent in accordance with nature's, he has no chance of understanding nature at all.

It goes without saying that any persons may attempt to unite kindred spirits, but, whatever their hopes and longings, none have the right to impose their vision of unity upon the rest.

When one admits that nothing is certain one must, I think, also admit that some things are much more nearly certain than others. It is much more nearly certain that we are assembled here tonight than it is that this or that political party is in the right. Certainly there are degrees of certainty, and one should be very careful to emphasize that fact, because otherwise one is landed in an utter skepticism, and complete skepticism would, of course, be totally barren and completely useless.

Second, we make no distinction between man and nature: the human essence of nature and the natural essence of man become one within nature in the form of production or industry, just as they do within the life of man as a species. Industry is then no longer considered from the extrinsic point of view of utility, but rather from the point of view of its fundamental identity with nature as production of man and by man.

How is it possible that a being with such sensitive jewels as the eyes, such enchanted musical instruments as the ears, and such fabulous arabesque of nerves as the brain can experience itself anything less than a god.

The union of the mathematician with the poet, fervor with measure, passion with correctness, this surely is the ideal.

What remains is the remarkable and, for many, certainly disquieting diagnosis that all genuine political theories presuppose man to be evil, i.e., by no means an unproblematic but a dangerous and dynamic being.

A gifted noble people; a people of wild strong feelings, and of iron restraint over these: the characteristic of noble-mindedness, of genius.

The past treatment of Africans must naturally fill them with abhorrence of Christians; lead them to think our religion would make them more inhuman savages, if they embraced it; thus the gain of that trade has been pursued in opposition to the Redeemer's cause, and the happiness of men: Are we not, therefore, bound in duty to him and to them to repair these injuries, as far as possible, by taking some proper measures to instruct, not only the slaves here, but the Africans in their own countries? Primitive Christians laboured always to spread their Divine Religion; and this is equally our duty while there is an Heathen nation: But what singular obligations are we under to these injured people!

Nothing is so fatal to Religion as indifference which is, at least, half Infidelity.

Every man takes the limits of his own field of vision for the limits of the world.

This heart within me I can feel, and I judge that it exists. This world I can touch, and I likewise judge that it exists. There ends all my knowledge, and the rest is construction. For if I try to seize this self of which I feel sure, if I try to define and to summarize it, it is nothing but water slipping through my fingers. I can sketch one by one all the aspects it is able to assume, all those likewise that have been attributed to it, this upbringing, this origin, this ardor or these silences, this nobility or this vileness. But aspects cannot be added up. This very heart which is mine will forever remain indefinable to me. Between the certainty I have of my existence and the content I try to give to that assurance, the gap will never be filled. Forever I shall be a stranger to myself.

Exploitation and manipulation produce boredom and triviality; they cripple man, and all factors that make man into a psychic cripple turn him also into a sadist or a destroyer. This position will be characterized by some as "overoptimistic," "utopian," or "unrealistic." In order to appreciate the merits of such criticism a discussion of the ambiguity of hope and the nature of optimism and pessimism seems called for.

... the attempt to make heaven on earth invariably produces hell. It leads to intolerance. It leads to religious wars, and to the saving of souls through the inquisition. And it is, I believe, based on a complete misunderstanding of our moral duties. It is our duty to help those who need help; but it cannot be our duty to make others happy, since this does not depend on us, and since it would only too often mean intruding on the privacy of those towards whom we have such amiable intentions.

It seems that the creative faculty, and the critical faculty, cannot exist together in their highest perfection.

When you have faults, do not fear to abandon them.

Our country is now taking so steady a course as to show by what road it will pass to destruction, to wit: by consolidation of power first, and then corruption, its necessary consequence. The engine of consolidation will be the Federal judiciary; the two other branches the corrupting and corrupted instruments.

Situation seems to be the mould in which men's characters are formed.

The best life is the one in which the creative impulses play the largest part and the possessive impulses the smallest.

I feel, like all modern Americans, no consciousness of sin and simply do not believe in it. All I know is that if God loves me only half as much as my mother does, he will not send me to Hell. That is a final fact of my inner consciousness, and for no religion could I deny its truth.

Remember that neither the future nor the past pains thee, but only the present. But this is reduced to a very little, if thou only circumscribest it, and chidest thy mind, if it is unable to hold out against even this.

Never accept compliments or criticism from someone you wouldn't take advice from.

In the presence of God himself man stands always like a solitary tree in the wilderness.

A man full of warm, speculative benevolence may wish his society otherwise constituted than he finds it, but a good patriot and a true politician always considers how he shall make the most of the existing materials of his country. A disposition to preserve and an ability to improve, taken together, would be my standard of a statesman. Everything else is vulgar in the conception, perilous in the execution.

Certainly He says this for me, for thee, for this other man, since He bears His body, the Church. Unless you imagine, brethren, that when He said: My Father, if it be possible, let this cup pass away from (Matt. 26:39), it was the Lord that feared to die. . . . But Paul longed to die, that he might be with Christ. What? The Apostle desires to die, and Christ Himself should fear death? What can this mean, except that He bore our infirmity in Himself, and uttered these words for those who are in His body and still fear death? It is from these that the voice came; it was the voice of His members, not of the Head. When He said, My soul is sorrowful unto death (Matt. 26:38), He manifested Himself in thee, and thee in Himself. And when He said, My God, my God, why has Thou forsaken Me? (Matt. 27:46), the words He uttered on the cross were not His own, but ours.

There is no end. There is no beginning. There is only the infinite passion of life.

You must love the crust of the earth on which you dwell more than the sweet crust of any bread or cake; you must be able to extract nutriment out of a sand heap.

It is a great good fortune, as Stendhal said, for one "to have his passion as a profession."

The use of the intellect in the sciences whose primitive concepts as well as axioms are given by sensuous intuition is only logical, that is, by it we only subordinate cognitions to one another according to their relative universality conformably to the principle of contradiction, phenomena to more general phenomena, and consequences of pure intuition to intuitive axioms. But in pure philosophy, such as metaphysics, in which the use of the intellect in respect to principles is real, that is to say, where the primary concept of things and relations and the very axioms are given originally by the pure intellect itself, and not being intuitions do not enjoy immunity from error, the method precedes the whole science, and whatever is attempted before its precepts are thoroughly discussed and firmly established is looked upon as rashly conceived and to be rejected among vain instances of mental playfulness.

The first consequence of the principle of bounded rationality is that the intended rationality of an actor requires him to construct a simplified model of the real situation in order to deal with it. He behaves rationally with respect to this model, and such behavior is not even approximately optimal with respect to the real world. To predict his behavior we must understand the way in which this simplified model is constructed, and its construction will certainly be related to his psychological properties as a perceiving, thinking, and learning animal.

Agricultural association, which in all ages has been deemed impossible, would produce results of unbounded magnificence the rigorous demonstrations, the mathematical calculations by which these results will be verified, will not, however, prevent the picture of the future harmony and happiness which they present from repelling minds habituated to the miseries and wretchedness of our present civilization. The Theory of Social Organization.

Within the last fifty years, the extraordinary growth of every department of physical science has spread among us mental food of so nutritious and stimulating a character that a new ecdysis seems imminent.

The true, prescriptive artist strives after artistic truth; the lawless artist, following blind instinct, after an appearance of naturalness. The one leads to the highest peaks of art, the other to its lowest depths.

Critics who treat adult as a term of approval, instead of as a merely descriptive term, cannot be adult themselves. To be concerned about being grown up, to admire the grown up because it is grown up, to blush at the suspicion of being childish; these things are the marks of childhood and adolescence. And in childhood and adolescence they are, in moderation, healthy symptoms. Young things ought to want to grow. But to carry on into middle life or even into early manhood this concern about being adult is a mark of really arrested development. When I was ten, I read fairy tales in secret and would have been ashamed if I had been found doing so. Now that I am fifty I read them openly. When I became a man I put away childish things, including the fear of childishness and the desire to be very grown up.

Self-interest, or rather self-love, or egoism, has been more plausibly substituted as the basis of morality. But I consider our relations with others as constituting the boundaries of morality. With ourselves, we stand on the ground of identity, not of relation, which last, requiring two subjects, excludes self-love confined to a single one. To ourselves, in strict language, we can owe no duties, obligation requiring also two parties. Self-love, therefore, is no part of morality. Indeed, it is exactly its counterpart.

As if our birth had at first sundered things, and we had been thrust up through into nature like a wedge, and not till the wound heals and the scar disappears, do we begin to discover where we are, and that nature is one and continuous everywhere.

Alas for him who seeks salvation in good only!Balanced on God's strong shoulders, Good and Evil flaptogether like two mighty wings and lift him high.

Such delusions of grandeur to think that a God with a hundred billion galaxies on his mind would give a tuppenny damn who you sleep with, or indeed whether you believe in him.

A philosophy has no private store of knowledge or methods for attaining truth, so it has no private access to good. As it accepts knowledge and principles from those competent in science and inquiry, it accepts the goods that are diffused in human experience. It has no Mosaic or Pauline authority of revelation entrusted to it. But it has the authority of intelligence, of criticism of these common and natural goods.

A distant enemy is always preferable to one at the gate.

There is but one way to bring about the triumph of liberty, of justice, and of peace in Europe's international relations, to make civil war impossible between the different peoples who make up the European family; and that is the formation of the United States of Europe.

When we have undermined the patriotic lie, we shall have cleared the path for that great structure wherein all nationalities shall be united into a universal brotherhood, - a truly FREE SOCIETY.