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

Karl Popper

In my view, aiming at simplicity and lucidity is a moral duty of all intellectuals: lack of clarity is a sin, and pretentiousness is a crime.
KARL POPPER

Crime Duty Moral Myself Philosophy Simplicity Sin
I would rather find a single causal law than be the king of Persia!
KARL POPPER

Law Myself
True ignorance is not the absence of knowledge, but the refusal to acquire it.
KARL POPPER

Knowledge Philosophy True
The conspiracy theory of society, comes from abandoning God and then asking: “Who is in his place?”
KARL POPPER

Abandonment God Himself Place Spiritual Theory
The aim of argument, or of discussion, should not be victory but progress.
KARL POPPER

Argument Progress Victory Win
The simple truth is that truth is hard to come by, and that once found may easily be lost again.
KARL POPPER

Easy Hard Lost Philosophy Simplicity Truth
The most we can say of democracy or freedom is that they give our personal abilities a little more influence on our well-being.
KARL POPPER

Ability Democracy Freedom
The game of science is, in principle, without end.
KARL POPPER

End Game One Liner Principle Science
In so far as a scientific statement speaks about reality, it must be falsifiable: and in so far as it is not falsifiable, it does not speak about reality.
KARL POPPER

Philosophy Reality Science Speak
Science must begin with myths, and with the criticism of myths.
KARL POPPER

Beginning Science
Science is most significant as one of the greatest spiritual adventures that man has yet known.
KARL POPPER

Adventure Greatness Man Science Spiritual
We must plan for freedom, and not only for security, if for no other reason than only freedom can make security more secure.
KARL POPPER

Freedom Philosophy Reason Security
“It can’t happen here” is always wrong: a dictatorship can happen anywhere.
KARL POPPER

Politics Wrong
What we need and what we want is to moralize politics, not to politicize morals.
KARL POPPER

Deep Moral Need Politics
All life is problem-solving.
KARL POPPER

Life One Liner Philosophy
The way of science is paved with discarded theories that were once declared self-evident.
KARL POPPER

Evidence Science Theory Way

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

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

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