Basic things about wisdom (and the wisdom books in bible - Job, Proverbs, Song of Songs, Ecclesiastes):
There are four levels of wisdom:
- A trade
- Intelligence, insight and/or shrewdness
- Common sense
- The understanding of the fundamental questions of life
The fourth level is the highest level. And through out the bible it is linked to trusting/loving/seeking/following God.
This is something that cannot be given or bought or stolen it can only be chosen.
Wisdom is not simply for old people it is for everyone. In fact the wisdom books target the youth. They invite youth to choose wisdom (to choose God) which is really a choice for life instead of death.