The only way we could remember would be by constant re-reading, for knowledge unused tends to drop out of mind. Knowledge used does not need to be re… - Henry Hazlitt

Though some of them would disdain to say that there are net benefits in small acts of destruction, they see almost endless benefits in enormous acts of destruction. They tell us how much better off economically we all are in war than in peace. They see “miracles of production” which it requires a war to achieve. And they see a postwar world made certainly prosperous by an enormous “accumulated” or “backed up” demand. In Europe they joyously count the houses, the whole cities that have been leveled to the ground and that “will have to be replaced.” In America they count the houses that could not be built during the war, the nylon stockings that could not be supplied, the worn-out automobiles and tires, the obsolescent radios and refrigerators. They bring together formidable totals.<p>It is merely our old friend, the broken-window fallacy, in new clothing, and grown fat beyond recognition. This time it is supported by a whole bundle of related fallacies. It confuses need with demand.

For every dollar that is spent on the (boondoggle) bridge a dollar will be taken away from taxpayers. If the bridge costs $1,000,000 the taxpayers will lose $1,000, 000. They will have that much taken away from them which they would otherwise have spent on the things they needed most.

"There are men regarded today as brilliant economists, who deprecate saving and recommend squandering on a national scale as the way of economic salvation; and when anyone points to what the consequences of these policies will be in the long run, they reply flippantly, as might the prodigal son of a warning father: "In the long run we are all dead." And such shallow wisecracks pass as devastating epigrams and the ripest wisdom."