1. Courage doesn't always roar. Sometimes courage is the quiet voice at the end of the day saying 'I will try again tomorrow.'
--Mary Anne Radmacher, American author and artist
2. Fall seven times and stand up eight.
3. It's not that I'm so smart, it's just that I stay with problems longer.
--Albert Einstein (1879-1955), physicist and developer of the theory of relativity
4. Many of life's failures are people who did not realize how close they were to success when they gave up.
--Thomas Edison (1874-1931), inventor of the light bulb
5. Failure is only the opportunity to begin again, this time more intelligently.
--Henry Ford (1863-1947), founder of Ford Motor Company
6. A failure is not always a mistake. It may simply be the best one can do under the circumstances. The real mistake is to stop trying.
--B.F. Skinner (1904-1990), American psychologist
7. Ask yourself this question: 'Will this matter a year from now?'
--Richard Carlson, American psychotherapist and author of Don't Sweat the Small Stuff
8. What if I told you that 10 years from now, your life would be exactly the same? I doubt you'd be happy. So, why are you so afraid of change?
--Karen Salmansohn, best-selling self-help author
9. As I look back on my life, I realize that every time I thought I was being rejected from something good, I was actually being redirected to something better.
--Dr. Steve Maraboli, speaker and author
10. Success is the sum of small efforts, repeated day in and day out.
--Robert Collier (1885-1950), American self-help author
11. It does not matter how slowly you go so long as you do not stop.
--Confucius (551-479 BC), philosopher
12. Never confuse a single defeat with a final defeat.
--F. Scott Fitzgerald (1896-1940), American author
13. Perseverance is the hard work you do after you get tired of doing the hard work you already did.
--Newt Gingrich (1943- ), American politician, historian, and author
14. Perseverance is failing 19 times and succeeding the 20th.
--Julie Andrews (1935- ), English film and stage actress
15. Through perseverance many people win success out of what seemed destined to be certain failure.
--Benjamin Disraeli (1804-1881), British politician and writer
16. Success seems to be largely a matter of hanging on after others have let go.
--William Feather (1889-1981), American author
17. Develop success from failures. Discouragement and failure are two of the surest stepping stones to success.
--Dale Carnegie (1888-1955), world-renowned author and speaker
18. Failure is often that early morning hour of darkness which precedes the dawning of the day of success.
--Leigh Mitchell Hodges (1876-1954), journalist and poet
19. We will either find a way or make one.
--Hannibal (247-182 BC), Carthaginian General
20. It always seems impossible until it's done.
--Nelson Mandela (1918-2013), South African anti-apartheid leader
21. The best way out is always through.
--Robert Frost (1874-1963), American poet
22. A winner is just a loser who tried one more time.
--George M. Moore Jr. (1862-1940), Member U.S. House of Representatives
23. I don't know the key to success, but the key to failure is trying to please everybody.
--Bill Cosby (1937- ), comedian and actor
24. Defeat is not the worst of failures. Not to have tried is the true failure.
--George Edward Woodberry (1855-1930), American poet
25. When you get into a tight place and everything goes against you … never give up then, for that is just the place and time that the tide will turn.
--Harriet Beecher Stowe (1811-1896), American abolitionist and author
26. The man who moves a mountain begins by carrying away small stones.
--Confucius (551-479 BC), philosopher
27. I am a slow walker, but I never walk back.
--Abraham Lincoln (1809-1865), 16th President of the United States
28. Every strike brings me closer to the next home run.
--Babe Ruth (1895-1948), baseball legend
29. Courage is not having the strength to go on; it is going on when you don't have the strength.
--Theodore Roosevelt (1858-1919), 26th President of the United States
30. Character consists of what you do on the third and fourth tries.
--James A. Michener (1907-1997), American author
31. Perseverance is not a long race; it is many short races one after the other.
--Walter Elliot (1888-1958), Scottish politician
32. The only courage that matters is the kind that gets you from one moment to the next.
--Mignon McLaughlin (1913-1983), American journalist and author
33. Let me tell you the secret that has led to my goal. My strength lies solely in my tenacity.
--Louis Pasteur (1822-1895), scientist and inventor of the pasteurization process
34. I was taught the way of progress is neither swift nor easy.
--Marie Curie (1867-1934), French physicist and two-time winner of the Nobel Prize
35. Success is not final, failure is not fatal: It is the courage to continue that counts.
--Winston Churchill (1874-1965), former Prime Minister of the United Kingdom
-Taken from inc.com