Karl Popper Quotes

The essential feature of dualist-interactionism is that the mind and brain are independent entities...and that they interact by quantum physics.

[S]ubject matters in general do not exist. There are no subject matters; no branches of learning—or, rather, of inquiry: there are only problems, and the urge to solve them.

Science may be described as the art of systematic over-simplification — the art of discerning what we may with advantage omit.

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

We all remember how many religious wars were fought for a religion of love and gentleness; how many bodies were burned alive with the genuinely kind intention of saving souls from the eternal fire of hell. Only if we give up our authoritarian attitude in the realm of opinion, only if we establish the attitude of give and take, of readiness to learn from other people, can we hope to control acts of violence inspired by piety and duty.

Democracy provides the institutional framework for the reform of political institutions (other than this framework). It makes possible the reform of institutions without using violence, and thereby the use of reason in the designing of new institutions and the adjusting of old ones. It cannot provide reason. The question of the intellectual and moral standard of its citizens is to a large degree a personal problem. (The idea that this problem can be tackled, in turn, by an institutional eugenic and educational control is, I believe, mistaken ; some reasons for my belief will be given below.) It is quite wrong to blame democracy for the political shortcomings of a democratic state. We should rather blame ourselves. In a non-democratic state, the only way to achieve reasonable reforms is by the violent overthrow of the government, and the introduction of a democratic framework. Those who criticize democracy on any ' moral ' grounds fail to distinguish between personal and institutional problems. It rests with us to improve matters. The democratic institutions cannot improve themselves. The problem of improving them is always a problem of persons rather than of institutions.

The wise man belongs to all countries, for the home of a great soul is the whole world.

If I were to give a simple formula or recipe for distinguishing between what I consider to be admissible plans for social reform and inadmissible Utopian blueprints, I might say: Work for the elimination of concrete evils rather than for the realization of abstract goods. Do not aim at establishing happiness by political means. Rather aim at the elimination of concrete miseries.

What we need and what we want is to moralize politics, not to politicize morals.

Scientific Method... [is] even less existent than some other non-existent subjects.

[T]he history of mankind could... be described as a history of outbreaks of fashionable philosophical and religious maladies. These... have... one serious function... evoking criticism.

We must not act like children reared with the narrow outlook “As it has been handed down to us”.

[A]rgument is a... form of the art of fighting—with words... inspired by... getting nearer to... truth...

I see now more clearly than ever before that even our greatest troubles spring from something that is as admirable and sound as it is dangerous — from our impatience to better the lot of our fellows. For these troubles are the by-products of what is perhaps the greatest of all moral and spiritual revolutions of history, a movement which began three centuries ago. It is the longing of uncounted unknown men to free themselves and their minds from the tutelage of authority and prejudice. It is their attempt to build up an open society which rejects the absolute authority to preserve, to develop, and to establish traditions, old or new, that measure up to their standards of freedom, of humaneness, and of rational criticism. It is their unwillingness to sit back and leave the entire responsibility for ruling the world to human or superhuman authority,and their readiness to share the burden of responsibility for avoidable suffering, and to work for its avoidance. This revolution has created powers of appalling destructiveness; but they may yet be conquered.

Diversity makes critical argument fruitful. ...[P]artners in an argument must share ...the wish to know, and the readiness to learn from the other ...by severely criticizing his views... and hearing... [the] reply. ...the so-called method of science consists in this kind of criticism.