“Now civilizations, I believe, come to birth and proceed to grow by successfully responding to successive challenges. They break down and go to pieces if and when a challenge confronts them which they fail to meet.”
Civilization on Trial (1948), chapter 4, p. 56.
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Arnold J. Toynbee 17
British historian, author of A Study of History 1889–1975Related quotes

“It's a lack of faith that makes people afraid of meeting challenges, and I believe in myself.”
As quoted in 101 Best Ways to Get Ahead (2004) edited by Michael E. Angier, with Sarah Pond, p. 59

The Life of the Creative Spirit
Context: I believe the principle fault of the majority of writers and artists is having neither the will nor the courage to break with their successes, failing to seek new paths and give birth to new ideas. Most of them produce them twice, three, even four times. They have neither the courage nor the temerity to leave what is certain for what is uncertain. There is, however, no greater pleasure than going into the depth of oneself, setting one's whole being in motion and seeking for new and hidden treasures. What a joy to find something new in oneself, something that surprises even ourselves, filling us with warmth.

Speech to the Labour Party Conference in Blackpool (October 1959), quoted in Michael Foot, Aneurin Bevan: A Biography. Volume II: 1945–1960 (Davis-Poynter, 1973), pp. 646–647 and Ben Pimlott, Harold Wilson (Harper Collins, 1993), p. 230
1950s

Speech to the Labour Party Conference in Brighton (12 December 1964), quoted in The Times (14 December 1964), p. 14
Prime Minister