He was, first and last, the born fighter, to whom the consciousness of being matched against a great adversary suffices, and who can dispense with success. Life for him was an adventure, perilous indeed, but men are not made for safe havens. The fullness of life is in the hazards of life. And, at the worst, there is that in us which can turn defeat into victory.

Referring to Aeschylus in The Great Age of Greek Literature (1942)