Character is of the first importance, but intelligence is nevertheless essential. Ii is desirable for a leader to have a broad education. History and poetry increase his knowledge of human passions. Culture offers the man of action opportunities now and then to capture his serenity; it puts at his disposal models of order and clarity. It is, in a sense, a work of art to reconstruct a country or to lead an army, and the man who has acquired a sense of beauty from his studies will be the more successful for it.

Un Art de Vivre (The Art of Living) (1939) - The Art of Leadership