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Our knowledge can only be finite, while our ignorance must necessarily be infinite.

Karl Popper

I hold that he who teaches that not reason but love should rule opens up the way for those who rule by hate.
KARL POPPER

Hate Love Myself Philosophy Teaching
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
Always remember that it is impossible to speak in such a way that you cannot be misunderstood: there will always be some who misunderstand you.
KARL POPPER

Impossible Philosophy Remember Speak Yourself
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
“It can’t happen here” is always wrong: a dictatorship can happen anywhere.
KARL POPPER

Politics Wrong
Those who promise us paradise on earth never produced anything but hell.
KARL POPPER

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

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

Adventure Greatness Man Science Spiritual
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
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
Science must begin with myths, and with the criticism of myths.
KARL POPPER

Beginning Science
The game of science is, in principle, without end.
KARL POPPER

End Game One Liner Principle 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
Those who promise us paradise on earth never produced anything but hell.
KARL POPPER

Hell Philosophy
Great men may make great mistakes.
KARL POPPER

Greatness Men Mistake One Liner

Our knowledge can only be finite, while our ignorance must necessarily be infinite.

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Our knowledge can only be finite, while our ignorance must necessarily be infinite.

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