“Here is my advice. When in doubt, give my new efforts a hearing. Many feel a calling to break new ground; in the end, few will end upfinding their efforts chosen. But the yea-sayer does do less harm than the naysayer, in that the Darwinian process of adverse testing will in time (most likely?) separate the useful from the useless, the trivial from the profound.”

The Autobiography of William Carlos Williams (1951), Ch. 54: The Practice
General sources
Context: What is the use of reading the common news of the day, the tragic deaths and abuses of daily living, when for over half a lifetime we have known that they must have occurred just as they have occurred given the conditions that cause them? There is no light in it. It is trivial fill-gap. We know the plane will crash, the train be derailed. And we know why. No one cares, no one can care. We get the news and discount it, we are quite right in doing so. It is trivial. But the hunted news I get from some obscure patients' eyes is not trivial. It is profound: whole academies of learning, whole ecclesiastical hierarchies are founded upon it and have developed what they call their dialectic upon nothing else, their lying dialectics. A dialectic is any arbitrary system, which, since all systems are mere inventions, is necessarily in each case a false premise, upon which a closed system is built shutting out those who confine themselves to it from the rest of the world. All men one way or another use a dialectic of some sort into which they are shut, whether it be an Argentina or a Japan. So each group is maimed. Each is enclosed in a dialectic cloud, incommunicado, and for that reason we rush into wars and prides of the most superficial natures.
Do we not see that we are inarticulate? That is what defeats us.

Source: This Lullaby

Broadcast, German European Service in English, 17 September 1944.
Refers to the first attack by the Vergeltungswaffe-1, or "reprisal weapon".

1950s, Farewell address to Congress (1951)
Context: We could hold in Korea by constant maneuver and in an approximate area where our supply line advantages were in balance with the supply line disadvantages of the enemy, but we could hope at best for only an indecisive campaign with its terrible and constant attrition upon our forces if the enemy utilized its full military potential. I have constantly called for the new political decisions essential to a solution.
Efforts have been made to distort my position. It has been said, in effect, that I was a warmonger. Nothing could be further from the truth. I know war as few other men now living know it, and nothing to me is more revolting. I have long advocated its complete abolition, as its very destructiveness on both friend and foe has rendered it useless as a means of settling international disputes. … But once war is forced upon us, there is no other alternative than to apply every available means to bring it to a swift end.

CBC Ideas Interview (podcast) (September 25, 2006)

Source: Antifragile: Things That Gain from Disorder (2012), p. 49

"Fiat's John Elkann shares family business views" http://www.fbn-i.org/dec-10/article1.html, FBNenews, 12-15-2010

Source: V. Peckhaus, "19th Century Logic between Philosophy and Mathematics," Bulletin of Symbolic Logic, 5 (1999), 433-450.

Source: The 80/20 principle: the secret of achieving more with less (1999), p. 142