Ability is what you're capable of doing. Motivation determines what you do. Attitude determines how well you do it.
The greatest discovery of all time is that a person can change his future by merely changing his attitude.
The meaning of things lies not in the things themselves, but in our attitude towards them.
Attitude is your acceptance of the natural laws, or your rejection of the natural laws.
It is our attitude at the beginning of a difficult task which, more than anything else, will affect its successful outcome.