Let me get this right. In the same sentence you say:
(a) "Yes absolutely it is essential to listen to whateverbody is saying"
AND
(b) "you must be selective about who you listen to"
Therefore, I can certainly agree with your final part of the same sentence:
"many people talk aload of old cobblers"
Peter Saxton from London snipped-for-privacy@petersaxton.co.uk