Arthur Balfour Quote

The interdependence of theory and practice cannot be ignored without inflicting injury on both; and he is but a poor friend to either who undervalues their mutual cooperation.


Reflections Suggested by the New Theory of Matter, Popular Science Monthly, Volume 65, Number 6, October, 1904 (p. 495)


The interdependence of theory and practice cannot be ignored without inflicting injury on both; and he is but a poor friend to either who undervalues ...

The interdependence of theory and practice cannot be ignored without inflicting injury on both; and he is but a poor friend to either who undervalues ...

The interdependence of theory and practice cannot be ignored without inflicting injury on both; and he is but a poor friend to either who undervalues ...

The interdependence of theory and practice cannot be ignored without inflicting injury on both; and he is but a poor friend to either who undervalues ...