What can be said at all can be said clearly; and whereof one cannot speak thereof one must be silent.


Tractatus Logico-Philosophicus (1922), preface

Variant translation: Everything that can be thought at all can be thought clearly.


What can be said at all can be said clearly; and whereof one cannot speak thereof one must be silent.

What can be said at all can be said clearly; and whereof one cannot speak thereof one must be silent.

What can be said at all can be said clearly; and whereof one cannot speak thereof one must be silent.

What can be said at all can be said clearly; and whereof one cannot speak thereof one must be silent.