black
grey
blue
red
brown
white

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

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

Hell Nature Promise
All life is problem-solving.
KARL POPPER

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

Break Greatness Men Ourselves Survive
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 so far as a scientific statement speaks about reality, it must be falsifiable: and in so far as it is not falsifiable, it does not speak about reality.
KARL POPPER

Philosophy Reality Science Speak
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
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
History has no meaning.
KARL POPPER

History One Liner
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
Every intellectual has a very special responsibility. He has the privilege and the opportunity of studying.
KARL POPPER

Himself Privilege Responsibility Special Study

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.

Related Topics

Popular Authors

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.

Related Topics

Popular Authors

More Karl Popper Quotes