William Stanley Jevons,
Political economy
“ This rule, indeed, does not apply to the schemers, speculators, or promoters, as they are called, who start so many companies. These people make it their business to have new schemes and shares to offer just when people are in a mind to buy, that is, during a bubble or time of excited trade. They take care to sell their own shares before the collapse comes, and it is their dupes who bear all the loss. A prudent man, therefore, would never invest in any new thing during a mania or bubble ”
