Who said "The only real failure is the failure to try."?

This quote is attributed to O. Henry.

The only real failure is the failure to try. - O. Henry

"The only real failure is the failure to try."

O. Henry Perseverance

Writer American 1862–1910

"Turn up the lights. I don't know what time it is."

"We are not made by our circumstances, we are made by our choices."

"Life is made up of sobs, sniffles, and smiles, with sniffles predominating."

"A stitch in time may have ten times the sequel."

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."