Here's my favorite Poem. It's written by William Ernest Henley. At an early age he lost his left leg due to tuberculosis in the bone. I love this poem, it's really powerful.
Out of the night that covers me,
Black as pitch from pole to pole.
I thank whatever Gods may be,
For my unconquerable soul.
In the fell clutch of circumstance,
I have neither winced nor cried aloud.
Under the bludgeonings of chance,
My head is bloody but unbowed.
Beyond this place of wrath and tears
Looms but the horror of the shade.
And yet the menace of the years,
Finds, and shall find me, unafraid.
It matters not how straight the gate,
How charged with punishment the scroll,
I am the master of my fate.
I am the captain of my soul.
--William Ernest Henley
Some people don't realize how difficult it can be for some people to get in shape. They say, "Just diet and exercise." What they don't understand is most people put their selfworth into nearly everything they do. I don't always have the best self esteem. So when my 2 year old wants to keep rough housing, and after 20 minutes I'm winded, it makes it worse. Then from there I'm suddenly judging how good of a father I really am. If I make a mistake at work I'm questioning my competence. Then it only comes to self destruction when someone says those things outloud that you've been thinking yourself. Don't believe them. They are liars, phonies, fakes. Don't believe those lies you were telling yourself. They're only true when you believe them to be true.
I believe there's an unshakeable core inside of us. Get out there and put it on display. Be defiant, be spontaneous, be active, be healthy.