Mental toughness is many things. It is humility because it behooves all of us to remember that simplicity is the sign of greatness and meekness is the sign of true strength. Mental toughness is spartanism with qualities of sacrifice, self-denial, dedication. It is fearlessness, and it is love.
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The real glory is being knocked to your knees and then coming back. That’s real glory. That’s the essence of it.