‘To the firm believer in this idea of ‘rationality,’ the spectacle of human behaviour (in himself and in others) departing from its norm may be expected to confirm his suspicion that ‘rational’ conduct of this sort is difficult, but not to shake his faith in its possibility and desirability. He will deplore the unregulated conduct which, because it is externally unregulated, he will think of as ‘irrational.’ But it will always be difficult for him to entertain the notion that what he identified as ‘rational’ conduct is in fact impossible, not because it is liable to be swamped by ‘insane and irrational springs of wickedness in most men,’ but because it involves a misrepresentation of the nature of human conduct.’
‘Among the other evidences of Rationalism in contemporary politics, may be counted the commonly admitted claim of the ‘scientist, as such (the chemist, the physicist, the economist or the psychologist) to be heard in politics; because, though the knowledge involved in a science is always more than technical knowledge, what it has to offer to politics is never more than a technique.’
Oakeshott, Michael. Rationalism In Politics And Other Essays. Indianapolis: Liberty Fund, 1991. Print.