I said that to invite minds to concern themselves with Mind and its destiny was a sign and symptom of the times. Would that idea have occurred to me, had not a whole body of impressions been sufficiently significant and powerful to reflect themselves in me, and for that reflection to become action? And that action, which consists of expressing it in your presence, would not perhaps have been accomplished had I not felt that my impressions were those of many other people, that the sensation of a diminution of mind, of a menace to culture, of a twilight of the most pure gods was a sensation which imposed itself with increasing strength on all those who are capable of feeling something in the order of superior values of which we are speaking.

p. 172. - Regards sur le monde actuel [Reflections on the World Today] (1931)