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.

Quote by Karl Popper

Topics: Karl Popper Quotes

It is impossible to speak in such a way that you cannot be misunderstood.

It is impossible to speak in such a way that you cannot be misunderstood.

Science must begin with myths, and with the criticism of myths.

Science must begin with myths, and with the criticism of myths.

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

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

We have become makers of our fate when we have ceased to pose as its...

We have become makers of our fate when we have ceased to pose as its...

Piecemeal social engineering resembles physical engineering in regarding the ends as beyond the province of...

Piecemeal social engineering resembles physical engineering in regarding the ends as beyond the province of...

We all remember how many religious wars were fought for a religion of love and...

We all remember how many religious wars were fought for a religion of love and...

Good tests kill flawed theories; we remain alive to guess again.

Good tests kill flawed theories; we remain alive to guess again.

Whenever a theory appears to you as the only possible one, take this as a...

Whenever a theory appears to you as the only possible one, take this as a...

There is no history of mankind, there are only many histories of all kinds of...

There is no history of mankind, there are only many histories of all kinds of...

Whenever a theory appears to you as the only possible one, take this as a...

Whenever a theory appears to you as the only possible one, take this as a...

We all remember how many religious wars were fought for a religion of love and...

We all remember how many religious wars were fought for a religion of love and...

No rational argument will have a rational effect on a man who does not want...

No rational argument will have a rational effect on a man who does not want...

Science may be described as the art of systematic over-simplification.

Science may be described as the art of systematic over-simplification.

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

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

It is impossible to speak in such a way that you cannot be misunderstood.

It is impossible to speak in such a way that you cannot be misunderstood.

We must plan for freedom, and not only for security, if for no other reason...

We must plan for freedom, and not only for security, if for no other reason...

Freedom and order are not incompatible... truth is strength... free discussion is the very life...

Freedom and order are not incompatible... truth is strength... free discussion is the very life...

We shall fight for a universal dominion of right by such a concert of free...

We shall fight for a universal dominion of right by such a concert of free...

Freedom is the opportunity to make decisions...

Freedom is the opportunity to make decisions...

Criticism of government finds sanctuary in several portions of the 1st Amendment. It is part...

Criticism of government finds sanctuary in several portions of the 1st Amendment. It is part...

That the greatest security of the people, against the encroachments and usurpations of their superiors,...

That the greatest security of the people, against the encroachments and usurpations of their superiors,...