Definiteness of purpose is ...
More phrases
Effort only fully releases its reward after a person refuses to quit.
Never complain and never explain.
A good plan violently executed now is better than a perfect plan executed next week.
George S. Patton
Problems are not stop signs, they are guidelines.
Robert Schuller
Never give up, for that is just the place and time that the tide will turn.
Harriet Beecher Stowe
Quotes from the same author
Aim for the moon. If you miss, you may hit a star.
W. Clement Stone
You are a product of your environment. So choose the environment that will best develop you toward your objective. Analyze your life in terms of its environment. Are the things around you helping you toward success - or are they holding you back?
W. Clement Stone
No matter how carefully you plan your goals they will never be more that pipe dreams unless you pursue them with gusto.
W. Clement Stone
When you discover your mission, you will feel its demand. It will fill you with enthusiasm and a burning desire to get to work on it.
W. Clement Stone
It is interesting to note that life never leaves us stranded. If life hands us a problem, it hands us also the abilities with which to meet the problem.
W. Clement Stone