Whenever you want to give up, think of Diana Nyad .  Her mantra is "find a way."

Age: 64
Occupation: Long distance swimmer
Obstacles: Tried four times to swim from Cuba to Florida, once in 1978 and
three times in 2011 and 2012
Triumph:  On September 2, 2013 she became the first person to swim from
Cuba to Florida (110 miles in 53 hours) without a shark cage.

I am raising my glass to a woman who defined persistence, perseverance,
endurance and never giving up.  You are a world hero.

Beyoncé



(More about Diana here )