Sometimes in our desire for success a little voice inside says that we don't have the 'goods' or the talent, that it's other people meant for success, not us. Consider the following by philosopher, coach and athlete, Percy Cerutty. He worked with athletes of varying skills, talent and ages.
"I do admit freely, frankly and fully, that we are not all born equal in graces, brains and ability, but I do affirm that no power exists, human or superhuman, that opposes the genuine aspirations and sincere attempts of any personality to advance itself."
In all of us is the ability to go beyond what we think we can accomplish.
Sometimes I wonder if saying we can't, really means, I don't want to bother trying, I don't want to make the effort.