Recent blog by Simon Sinek.
Here is a quick extract, the full blog can be read at his website: http://sinekpartners.typepad.com/refocus/2011/09/obligate-ram-ventilation.html
“To innovate, to have ideas, to contribute, we need do things outside our job specs: read books, watch movies, travel, meet new people, do new things. If we do the same thing everyday over and over with no forward momentum….we die.
To make progress, we need to execute, produce something, ship. If we spend all our time trying to make it perfect and never get it out the door…we die.”