"A threefold cord is not quickly broken."
“Anyone who has a continuous smile on his face conceals a toughness that is almost frightening.” Greta Garbo
“Toughness is in the soul and spirit, not in muscles.” Alex Karras
"Good work habits help develop an internal toughness and a self-confident attitude that will sustain you through every adversity and temporary discouragement.” Paul J. Fleyer
"Concentration and mental toughness are the margins of victory.” Bill Russell
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