“Do not be in a hurry to succeed. What would you have to live for afterwards? Better make the horizon your goal; it will always be ahead of you.”
This is from 19th century English novelist William Makepeace Thackeray, famous for writing the satire Vanity Fair.
Mahatma Gandhi concurred with:
“Glory lies in the attempt to reach one’s goal and not in reaching it.”
American comedian W.C. Fields, ever the pragmatist, puts it succinctly:
“If at first you don’t succeed try, try again. Then quit. There’s no point in being a damn fool about it.”