The man of reflection ...

The man of reflection discovers Truth;  but the one who enjoys it and makes
 use of its heavenly gifts is the man of action.
The man of reflection discovers Truth;  but the one who enjoys it and makes use of its heavenly gifts is the man of action.
 Benito Perez Galdos

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