CLAY SHIRKY

• Knowledge is the factual information, the awareness, and understanding of a subject. It is basically information about something that comes from learning facts.
• Wisdom is the ability to use knowledge and expertise to make sound judgement and decisions. It is an i...

They are a representation of an external reality inside your head. 

Mental models are concerned with understanding knowledge about the world, they put knowledge in a usable form.

To travel around the world’s philosophies is an opportunity to challenge beliefs we take for granted. By gaining greater knowledge of how others think, we can become less certain of the knowledge we think we have, which is always the first step to greater understanding.