“The key to success is failure.”
“The key to success is not to seek for a particular key to success!”
“Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.”
“All failure is failure to adapt, all success is successful adaptation.”
“She knows there's no success like failure, and that failure's no success at all.”
“People think that the opposite of success is failure, but it's not. Failure is part of the process of success.”