I recently came across this list of 16 reasons why people fail in their careers. It is really a review (by Harvey Schachter) in the Globe and Mail Business section on the book "Why People Fail" by Simon Reynolds, but in summarizing the book, it provides a concise and insightful list.

My favorite is really a rewording of the old adage 'brain over brawn': Not enough thinking: An obsession with doing, doing, doing will ultimately do you in. Instead, you must think, think, think.

http://www.theglobeandmail.com/report-on-business/careers/management/morning-...