The history of science shows that the progress of science has constantly been hampered by the tyrannical influence of certain conceptions that finally came to be considered as dogma. For this reason, it is proper to submit periodically to a very searching examination, principles that we have come to assume without any more discussion.
The scholars who understand it hesitate to speak out boldly for fear people will not understand. The people, who understand it quite easily, also fear to speak out while they wait for the scholars to speak out first. The difference between our present situation and that of the story is that it is not the emperor but the people who are periodically made to go naked and hungry and insecure and discontented - a ready prey to less timid organizers of discontent for the destruction of the civilization.abba lerner
The scapegoat upon whom the sins of the people are periodically laid, may also be a human being.james frazer
The capacity to transform itself from the inside makes capitalism a somewhat peculiar beast - chameleon-like, it perpetually changes it colour; snake-like, it periodically sheds its skin.david harvey
Thus those reformers, who look for a remedy by creating artificial carrying-costs for the money through the device of requiring legal-tender currency to be periodically stamped at a prescribed cost in order to retain its quality as money, or in analogous ways, have been on the right track; and the practical value of their proposals deserves consideration.john maynard keynes
For Jews, the Messiah has never come; for Christians, He has come but once; for modern man, He appears and disappears with increasing rapidity. The saviors of modern man, the "scientists" who promise salvation through the "discoveries" of ethology and sociology, psychology and psychiatry, and all the other bogus religions, issue forth periodically, as if selected by some Messiah-of-the-Month Club.thomas szasz
We question most of the mantras around here periodically, in case you hadn't noticed.larry wall