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“We don’t know anything” and believed that this was the most important philosophical truth.

Karl Popper

Instead of the greatest happiness for the greatest number, one should demand, more modestly, the least amount of avoidable suffering for all.
KARL POPPER

Avoid Demand Greatness Happiness Philosophy Prayer Suffering
Our knowledge can only be finite, while our ignorance must necessarily be infinite.
KARL POPPER

Deep Knowledge Necessary Philosophy
What we need and what we want is to moralize politics, not to politicize morals.
KARL POPPER

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

Adventure Greatness Man Science Spiritual
History has no meaning.
KARL POPPER

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

Abandonment Mystery Philosophy
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
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 way of science is paved with discarded theories that were once declared self-evident.
KARL POPPER

Evidence Science Theory Way
We all have an unscientific weakness for being always in the right, and this weakness seems to be particularly common among professional and amateur politicians.
KARL POPPER

Politics Right Science Weakness
Great men may make great mistakes.
KARL POPPER

Greatness Men Mistake One Liner
Science may be described as the art of systematic oversimplification.
KARL POPPER

Art Science Simplicity
The future depends on ourselves, and we do not depend on any historical necessity.
KARL POPPER

Future History Necessary Ourselves
The aim of argument, or of discussion, should not be victory but progress.
KARL POPPER

Argument Progress Victory Win
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
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

“We don’t know anything” and believed that this was the most important philosophical truth.

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“We don’t know anything” and believed that this was the most important philosophical truth.

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