Autores:
  • No company has a permanent consumer franchise. No one has the only game in town. The never-ending cycle of destruction and change inherent in a capitalist economy always provides new opportunities for those with determination, goals and concentration.

    Harvey Mackay (1996). "Nade con los tiburones sin que le devoren vivo: Outsell, Outmanage, Outmotivate, & Outnegotiate Your Competition", Ballantine Books.