Ninety percent of my game is mental. It's my concentration that has gotten me this far.

Chris Evert

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Effort, not genetics, is within your control.

When pain, misery, or anger happen, it is time to look within you, not around you.

There's not shame in dealing with these things. There's no shame in having to fight everyday.

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After you've done a thing the same way for two years, look it over carefully. After five years, look at it with suspicion. And after ten years, throw it away and start all over.

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Así como el hierro se oxida por falta de uso, también la inactividad destruye el intelecto.

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