Wisdom is nothing more than the marriage of intelligence and compassion. And, as with all good unions, it takes much experience and time to reach its widest potential. Have you introduced your intellect to your compassion yet? Be careful; lately, intellect has taken to eating in front of the TV and compassion has taken in too many cats.
Intelligent people know they are intelligent. They also know that one person cannot know all, hence a person is not stupid simply because he is ignorant of one thing or another. They know that, to another intelligent person, they will not appear stupid in asking for an explanation of what they do not know, and so their ignorance on any particular issue does not become an embarrassment.