There is no allurement or ...

There is no allurement or enticement, actual or imaginary, which a well-disciplined mind may not surmount. The wish to resist more than half accomplishes the object.
There is no allurement or enticement, actual or imaginary, which a well-disciplined mind may not surmount. The wish to resist more than half accomplishes the object.
 Charlotte Dacre

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