Wisdom involves several things, IMO;

LISTENING!
Accepting others' ideas that may conflict without necesarily adopting them ( Letting others speak)--How often do you hear politicians and talk-show pundits who do not let the oppostition speak?
Employing good judgment--which too often comes from living with the results of poor judgment.
Listening---We have two ears and one mouth--there is a reason for that.

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1982 300SD " Wotan" ..On the road as of Jan 8, 2007 with Historic Tags