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For the man who has lost all Self-Control is led on with

deliberate moral choice, holding that it is his line to pursue

pleasure as it rises: while the man of Imperfect Self-Control

does not think that he ought to pursue it, but does pursue it all

the same.

Now as to the notion that it is True Opinion and not Knowledge in

contravention of which men fail in Self-Control, it makes no

difference to the point in question, because some of those who

hold Opinions have no doubt about them but suppose themselves to

have accurate Knowledge; if then it is urged that men holding

Opinions will be more likely than men who have Knowledge to act

in contravention of their conceptions, as having but a moderate

belief in them; we reply, Knowledge will not differ in this

respect from Opinion: because some men believe their own Opinions

no less firmly than others do their positive Knowledge:

Heraclitus is a case in point.