«I do not think there is any other quality so essential to success of any kind as the quality of perseverance. It overcomes almost everything, even nature.»
— John D. Rockefeller
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Don Charisma 
Thank you for this. Am currently sick and have a 30k race this Sunday. Only perseverance will get me through!
You’re welcome … and sorry to hear that … I’m sure I couldn’t give you any advice, other than rest up and eat well … and good luck for Sunday 🙂