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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

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

Break Greatness Men Ourselves Survive
Those who promise us paradise on earth never produced anything but hell.
KARL POPPER

Hell Nature Promise
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
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
“We don’t know anything” and believed that this was the most important philosophical truth.
KARL POPPER

Believe Important Philosophy Truth
True ignorance is not the absence of knowledge, but the refusal to acquire it.
KARL POPPER

Knowledge Philosophy True
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 can all participate in the heritage of man. We all can help to preserve it. And we can all make our own modest contribution to it.
KARL POPPER

Help Man Nature Ourselves
The game of science is, in principle, without end.
KARL POPPER

End Game One Liner Principle Science
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
The way of science is paved with discarded theories that were once declared self-evident.
KARL POPPER

Evidence Science Theory Way
Science must begin with myths, and with the criticism of myths.
KARL POPPER

Beginning Science
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
All life is problem-solving.
KARL POPPER

Life One Liner Philosophy
A theory that explains everything, explains nothing.
KARL POPPER

One Liner Philosophy Theory

We must plan for freedom, and not only for security, if for no other reason than only freedom can make security more secure.

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We must plan for freedom, and not only for security, if for no other reason than only freedom can make security more secure.

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Popular Authors

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