" The second danger of derivatives is that your love becomes vulnerable to contamination when you do it for money. If you are forced to do anything, even something you purport to love, in exchange for a paycheck, that love is put in danger. Years ago, I took a job as a limo driver because I loved to drive. By the time that job ended, I hated to drive. After work, I’d stay home because I was so sick of driving. My love was contaminated. "

― M.J. DeMarco , The Millionaire Fastlane: Crack the Code to Wealth and Live Rich for a Lifetime!