Success is not final, failure ...

Success is not final, failure is not fatal: it is the courage to continue that counts.
Success is not final, failure is not fatal: it is the courage to continue that counts.

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Being self-made is a state of mind, and once you put that mentality to work, your success will come.
 Dave East
A lot of people change for good. Some people just fall off. Just trying to progress in anything, no matter what you're doing, I feel like any progression you make... some people aren't gonna be around you that were around you.
 Dave East
There are no secrets to success. It is the result of preparation, hard work, and learning from failure.
You have to have the service mentality in the sense that you subjugate your own ego, and you subjugate a large part of your own life to really helping other people, being successful on their behalf.
 Herb Kelleher
Success consists of going from failure to failure without loss of enthusiasm.

Quotes from the same author

Whatever you do in life, surround yourself with smart people who'll argue with you.
You can't let praise or criticism get to you. It's a weakness to get caught up in either one.
Never mistake activity for achievement.
Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful.
Be true to yourself, help others, make each day your masterpiece, make friendship a fine art, drink deeply from good books - especially the Bible, build a shelter against a rainy day, give thanks for your blessings and pray for guidance every day.