"There were experiences in previous centuries which might well have challenged this unqualified optimism. But the expansion of man's power over nature proceeded at such a pace that all doubts were quieted, allowing the nineteenth century to become the “century of hope” and to express the modern mood in its most extravagant terms. History, refusing to move by the calendar, actually permitted the nineteenth century to indulge its illusions into the twentieth. Then came the deluge. Since 1914 one tragic experience has followed another, as if history had been designed to refute the vain delusions of modern man."

“The measure of our rationality determines the degree of vividness with which we appreciate the needs of other life, the extent to which we become conscious of the real character of our own motives and impulses, the ability to harmonize conflicting impulses in our own life and in society, and the capacity to choose adequate means for approved ends.”

“We Protestants ought to humbly confess that the theater and the sports have done more for race amity, for race understanding than, on the whole, the Protestant Church in certain type, in certain parts of the nation.”

“Man does not know himself truly except as he knows himself confronted by God. Only in that confrontation does he become aware of his full stature and freedom and of the evil in him.”

“Our dreams of bringing the whole of human history under the control of the human will are ironically refuted by the fact that no group of idealists can easily move the pattern of history toward the desired goal of peace and justice. The recalcitrant forces in the historical drama have a power and persistence beyond our reckoning.”

“The will-to-live becomes the will-to-power.”

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