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The way of science is paved with discarded theories that were once declared self-evident.

Karl Popper

If our civilization is to survive, we must break with the habit of deference to great men.
KARL POPPER

Break Greatness Men Ourselves Survive
Science may be described as the art of systematic oversimplification.
KARL POPPER

Art Science Simplicity
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
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
“We don’t know anything” and believed that this was the most important philosophical truth.
KARL POPPER

Believe Important Philosophy Truth
All life is problem-solving.
KARL POPPER

Life One Liner Philosophy
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
Great men may make great mistakes.
KARL POPPER

Greatness Men Mistake One Liner
Theology, I still think, is due to a lack of faith.
KARL POPPER

Faith One Liner Thinking
Those who promise us paradise on earth never produced anything but hell.
KARL POPPER

Hell Nature Promise
We must regard all laws or theories as hypothetical or conjectural; that is, as guesses.
KARL POPPER

Law Philosophy Theory
While differing widely in the various little bits we know, in our infinite ignorance we are all equal.
KARL POPPER

Deep Difference Equality Ourselves Philosophy
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
A theory that explains everything, explains nothing.
KARL POPPER

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

Adventure Greatness Man Science Spiritual
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 way of science is paved with discarded theories that were once declared self-evident.

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The way of science is paved with discarded theories that were once declared self-evident.

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