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

Karl Popper

It is complete nihilism to propose laying down arms in a world where atom bombs are around. It is very simple: there is no way of achieving peace other than with weapons.
KARL POPPER

Achieve Peace Simplicity Weapon World
Those who promise us paradise on earth never produced anything but hell.
KARL POPPER

Hell Philosophy
It is wrong to think that belief in freedom always leads to victory; we must always be prepared for it to lead to defeat. If we choose freedom, then we must be prepared to perish along with it.
KARL POPPER

Believe Choice Freedom Lost Philosophy Prepare Thinking Victory Wrong
The quest for precision is analogous to the quest for certainty, and both should be abandoned.
KARL POPPER

Abandonment Mystery Philosophy
Theology, I still think, is due to a lack of faith.
KARL POPPER

Faith One Liner Thinking
He who decides one day that scientific statements do not call for any further test and that they can be regarded as finally verified retires from the game.
KARL POPPER

Call Decision Game Himself Science
If you can’t say it simply and clearly, keep quiet, and keep working on it till you can.
KARL POPPER

Quiet Science Simplicity Yourself
Great men may make great mistakes.
KARL POPPER

Greatness Men Mistake One Liner
We can all participate in the heritage of man. We all can help to preserve it. And we can all make our own modest contribution to it.
KARL POPPER

Help Man Nature Ourselves
Theories are nets cast to catch what we call ‘the world’: to rationalize, to explain, and to master it. We endeavor to make the mesh ever finer and finer.
KARL POPPER

Fine Perfection Theory World
The wise man belongs to all countries, for the home of a great soul is the whole world.
KARL POPPER

Greatness Home Man Philosophy Soul Spiritual Wisdom World
The aim of argument, or of discussion, should not be victory but progress.
KARL POPPER

Argument Progress Victory Win
The method of learning by trial and error – of learning from our mistakes – seems to be fundamentally the same whether it is practiced by lower or by higher animals, by chimpanzees, or by men of science.
KARL POPPER

Animal Learning Man Mistakes Ourselves Science
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
Science must begin with myths, and with the criticism of myths.
KARL POPPER

Beginning Science
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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