„Do not get angry and lose your temper quickly over the mistakes and failures of those over whom you rule. On the contrary, be patient and sympathetic with them.“

— Ali

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„You are not a failure until you start blaming others for your mistakes“
— John Wooden
„Forget mistakes. Forget failure. Forget everything except what you're going to do now and do it. Today is your lucky day“
— Will Durant
„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
„When we are confronted by failure and mistakes, we can leave them behind and go on with our lives.“
— Ben Carson
„You can’t let your failures define you. You have to let your failures teach you.“
— Barack Obama