People lacking wisdom may be considered foolish or arrogant.  They do not learn from their mistakes, and they lack understanding and insight.

Enemies of Wisdom:

• Laziness – When personal comfort is a high priority and little effort is put into making decisions, wisdom will be elusive
• Impulsiveness – Leads to decisions that feel good in the moment but yield loss and regret
• Naivete – Gullible people are easily swayed and innocently believe whatever they are told

“Any fool can know.  The point is to understand.” Albert Einstein