(noun) Continuing in a course of action without regard to discouragement, opposition or previous failure.
"Fall seven times, stand up eight."
"Success is not final, failure is not fatal."
"Run when you can, walk if you have to, crawl if you must; just never give up."
"Always bear in mind that your own resolution to succeed is more important than any one thing."
"She stood in the storm, and when the wind did not blow her way, she adjusted her sails."
"The greatest glory in living lies not in never falling, but in rising every time we fall."
"The only way out is through."
"Don't stop believin' hold on to that feelin'."
"God knows our situation; He will not judge us as if we had no difficulties to overcome. What matters is the sincerity and perseverance of our will to overcome them."
"It is during our darkest moments that we must focus to see the light."