Perhaps it matters little ...
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
The coldest growing seasons of the future [will be] hotter than the hottest of the past. Is agriculture adapted to that? I don't know. Can fish play the piano?
Cary Fowler
I'm not talking about losing [agricultural] diversity in the same way that you lose your car keys. I'm talking about losing it in the same way that we lost the dinosaurs: actually losing it, never to be seen again.
Cary Fowler