|I do not necessarily recommend this link but it is where I found this picture: http://mum6kids.wordpress.com/2010/04/12/can-i-teach-discernment/
Discernment is to Judgment as Wisdom is to facts.
Fact: that is a wolf in sheep’s clothing
Judgment: what a hypocrite
Discernment: I see someone who is trying to hide
Wisdom: until I understand why they are wearing sheep’s clothing I will be cautious.