The character of greatness ...

The character of greatness must be measured in two ways, else the measurement is flawed. First, and by far most popular of all, is by one's ability to succeed in times of trial where others may fail. But of no less importance, and perhaps foundational to any form of greatness, is one's willingness to start over in spite of failure, when success seems farthest away.
 Guy Finley

Quotes from the same author

The greatest power you possess in life is your understanding that life gives you a fresh start any moment you choose.
 Guy Finley
Our greatest strength isn't our ability to imagine brighter days ahead, it is that we are empowered-in every present moment-to effortlessly dismiss any dark thought or feeling that, left unattended, diminishes our happiness.
 Guy Finley
If you don't leap, you'll never know what it's like to fly.
 Guy Finley
Each moment of life is only as precious as is our ability to attend to it.
 Guy Finley
If any of those times you rushed around madly - trying to get somewhere faster - had ever made any real difference in the quality of your life... don't you think you'd be able to slow down by now?
 Guy Finley