If you believe that you are having a hard time reaching your goal because you lack the necessary ability, and that you can’t do much to change that ... well, there’s no way to put this nicely: you are wrong. Effort, planning, persistence, and good strategies are what it really takes to succeed.Heidi Grant HalvorsonThe Author of this QuoteAuthorHeidi Grant HalvorsonPsychologist who studies the science of motivation and communication.