The Gryphon's Lair

"The war creates no absolutely new situation; it simply aggravates the permanent human situation so that we can no longer ignore it. Human life has always been lived on the edge of a precipice" If men had postponed the search for knowledge and beauty until they were secure, the search would never have begun. We are mistaken when we compare war with "normal life." Life has never been normal." It has always been an uncertain mix of greatness and misery, joy and heartache, long-term plans and sudden disasters.

Here. See also, here