He is an incorruptible watch-dog who will not allow anything to pass which is not observationally true.


The Philosophy of Physical Science, Chapter VII, Section II (p. 112), The Macmillan Company. 1939


He is an incorruptible watch-dog who will not allow anything to pass which is not observationally true.

He is an incorruptible watch-dog who will not allow anything to pass which is not observationally true.

He is an incorruptible watch-dog who will not allow anything to pass which is not observationally true.

He is an incorruptible watch-dog who will not allow anything to pass which is not observationally true.