"Economists have never allowed their analysis to be influenced by psychologists of their time, but have always framed for themselves such assumptions about psychical processes as they have thought it desirable to make."

“Many things may be copied by the latter; the example as such also acts upon them; and many achievements directly serve other branches too .”

“Since as we have seen the entrepreneurial qualification is something which, like many other qualities, is distributed in an ethnically homogeneous group according to the law of error, the number of individuals who satisfy progressively diminishing standards in this respect continually increases. Hence, neglecting exceptional cases — of which the existence of a few Europeans in a negro population would be an example — with the progressive lightening of the task continually more people can and will become entrepreneurs, wherefore the successful appearance of an entrepreneur is followed by the appearance not simply of some others, but of ever greater numbers, though progressively less qualified.”

“Why do entrepreneurs appear, not continuously, that is singly in every appropriately chosen interval, but in clusters? Exclusively because the appearance of one or a few entrepreneurs facilitates the appearance of others, and these the appearance of more, in ever-increasing numbers.”

“When we inquire about the general forms of economic phenomena, about their uniformities, or about a key to understanding them, we ipso facto indicate that we wish at that moment to consider them as something to be investigated, to be sought for, as the “unknown”; and that we wish to trace them to the relatively “known,” just as any science deals with its object of inquiry.”

“Only a few people have these qualities of leadership and only a few in such a situation, that is a situation which is not itself already a boom, can succeed in this direction. However, if one or a few have advanced with success many of the difficulties disappear. Others can then follow these pioneers, as they will clearly do under the stimulus of the success now attainable. Their success again makes it easier, through the increasingly complete removal of the obstacles analysed in the second chapter, for more people to follow suit, until finally the innovation becomes familiar and the acceptance of it a matter of free choice.”

“In all cases, not only in the two which we have analyzed, recovery came of itself. There is certainly this much of truth in the talk about the recuperative powers of our industrial system. But this is not all: our analysis leads us to believe that recovery is sound only if it does come of itself. For any revival which is merely due to artificial stimulus leaves part of the work of depressions undone and adds, to an undigested remnant of maladjustment, new maladjustment of its own which has to be liquidated in turn, thus threatening business with another crisis ahead. Particularly, our story provides a presumption against remedial measures which work through money and credit. For the trouble is fundamentally not with money and credit, and policies of this class are particularly apt to keep up, and add to, maladjustment, and to produce additional trouble in the future.”