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No book can ever be finished. While working on it we learn just enough to find it immature the moment we turn away from it

Karl Popper

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

Adventure Greatness Man Science Spiritual
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
All life is problem-solving.
KARL POPPER

Life One Liner Philosophy
And it implies that if we respect truth, we must search for it by persistently searching for our errors: by indefatigable rational criticism, and self-criticism.
KARL POPPER

Philosophy Respect Search Truth
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
Every intellectual has a very special responsibility. He has the privilege and the opportunity of studying.
KARL POPPER

Himself Privilege Responsibility Special Study
If we are not prepared to defend a tolerant society against the onslaught of the intolerant, then the tolerant will be destroyed, and tolerance with them.
KARL POPPER

Deep Destroy Oppression Philosophy Prepare Tolerance
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
The way of science is paved with discarded theories that were once declared self-evident.
KARL POPPER

Evidence Science Theory Way
It is not the consciousness of man that determines his existence – rather, it is his social existence that determines his consciousness.
KARL POPPER

Existence Man Philosophy Spiritual
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 game of science is, in principle, without end.
KARL POPPER

End Game One Liner Principle Science
The quest for precision is analogous to the quest for certainty, and both should be abandoned.
KARL POPPER

Abandonment Mystery Philosophy
“We don’t know anything” and believed that this was the most important philosophical truth.
KARL POPPER

Believe Important Philosophy Truth
We must regard all laws or theories as hypothetical or conjectural; that is, as guesses.
KARL POPPER

Law Philosophy Theory

No book can ever be finished. While working on it we learn just enough to find it immature the moment we turn away from it

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No book can ever be finished. While working on it we learn just enough to find it immature the moment we turn away from it

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Popular Authors

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