I was asked the following question in an interview:
Is there a single thing that you can tell us that would improve our flash photography instantly if we were to do this one simple thing?
My answer came from a simple realization that took me years to really grasp:
It is all about the direction and the quality of the light. Whether you use natural light, on-camera flash, off-camera flash, multiple light setups or video light -- it all comes down to exactly that - the direction and quality of light. Once you recognize this aspect of photography and lighting, then the door is wide open for you to be able to comfortably use any light source. ( via Neil van Niekerk)
Neil van Niekerk's Site: neilvn.com/tangents