If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle.

--Sun Tzu, The Art of War

The...

Building A Second Brain is a methodology for saving and systematically reminding us of the ideas, inspirations, insights, and connections we’ve gained through our experience. It expands our memory and our intellect using the modern tools of technology and networks. (source)

...

A mistake is only a mistake if you make it twice.

— Robin S. Sharma

The Challenge

Have you experience the following moments after failing an interview?

• “Gosh, I wish I didn’t say that!”
• “Gee, I should have used the other better example when answering that...