Interlacing of Cognition with emotion

[vigne...@gmail.com]

Sir, In one of your lectures you have said that there is no cognitive input which doesn't touch the emotional part of the brain and rationality is always interlaced with emotion. In light of this statement, I would like to revisit the foundations of Greek philosophy. Socrates said that "Knowledge is Virtue" for a human and Plato later went on to extrapolate this dictum and apply for the creation of an ideal state. Both of them categorically state that reason and rationality should be the guiding light of humans and there shouldn't be any veil of emotion in deciding what is right and what is justice.  

From a neuroscience perspective, as you said, if rationality is always interlaced with emotion, how come it is possible that there could be 'absolute knowledge' which is devoid of any emotional undercurrent as these philosophers propound? 

Can we hold that these philosophers too, albeit at a miniscule level, were driven partly by emotion, without themselves recognizing their shortcomings? 

I request you to throw some light on this perspective.