Every man who accomplishes things sees first in his mind what he wishes to do. He puts away all doubt. It makes no difference how small or how large the thing you want to do may be; if you have an unlimited confidence in your ability to do it, you will do
In time of difficulties, we must not lose sight of our achievements.
The roots of true achievement lie in the will to become the best that you can become.
Jack Nicklaus, My Story
Achievement is largely the product of steadily raising one's levels of aspiration and expectation.
C. S. Lewis
Failures are finger posts on the road to achievement.
The awareness of the ambiguity of one's highest achievements (as well as one's deepest failures) is a definite symptom of maturity.
Simplicity is the final achievement. After one has played a vast quantity of notes and more notes, it is simplicity that emerges as the crowning reward of art.
Dissatisfaction with possession and achievement is one of the requisites to further achievement.