The criterion of action 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
Taqwaa is not by praying all night and fasting all day but rather it is abiding by the commands of Allah and staying away from His prohibitions.
Umar
Do not accept gifts; [because] that is bribery.
Umar
If a sheep dies on the shore of the Euphrates I fear lest Allah ask me to account for it on the Day of Resurrection.
Umar
The wisest man is he who can account for his actions.
Umar
Take account of yourselves before you are brought to account.
Umar