I am less certain than when I then wrote of the social and personal value of such a warning.

A Short History of Financial Euphoria by John Kenneth Galbraith.  Page viii.

In the first Foreword to this volume, I told of my hope that business executives, the inhabitants of the financial world and the citizens of speculative mood, tendency or temptation might be reminded of the way that not only fools but quite a lot of other people are recurrently separated from their money in the moment of speculative euphoria. I am less certain than when I then wrote of the social and personal value of such a warning. Recurrent speculative insanity and the associated financial deprivation and larger devastation are, I am persuaded, inherent in the system. Perhaps it is better that this be recognized and accepted.