All you need in this life is ignorance and confidence; then success is sure.
Mark Twain
Many of life's failures are people who did not realize how close they were to success when they gave up.
Thomas Edison
Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.
Thomas Edison
Learn from the mistakes of others. You can’t live long enough to make them all yourself.
Eleanor Roosevelt
There is no such thing as failure. There are only results.
Anthony Robbins