The Empire Strikes Back brings the most truth about the characters of the series to light. Han Solo, Luke, Darth Vader, these are but a few of the characters who are best defined in the original trilogy. They all force themselves to the best of their ability and make each other understand they are willing to go to any length to accomplish their goals, either through resistance or treatment.
I fought on the battlefield. I retired to embrace a life of discovery and profit. I carve my own path in life and am better for it.