Two of them are actually been incorrectly attributed.
I have provided external links for those two.
#1 - Barry Sanders Nike Ad.
I had a copy of this on my door as an undergrad.
Too often we are scared.
Scared of what we might not be able to do.
Scared of what people might think if we tried.
We let our fears stand in the way of our hopes.
We say no when we want to say yes.
We sit quietly when we want to scream.
And we shout with the others,
when we should keep our mouths shut.
we do only go around once.
There's really no time to be afraid.
Try something you've never tried.
Enter a triathlon.
Write a letter to the editor.
Demand a raise.
Call winners at the toughest court.
Throw away your television.
Bicycle across the United States.
Speak out against the designated hitter.
Travel to a country where you don't speak the language.
You have nothing to lose
everything to gain.
JUST DO IT.
#2 - Charles Sykes, incorrectly attributed to Bill Gates.
"Some Rules Kids Won't Learn in School."
This is my cynical counter-balance for when I feel that we have gone too far in protecting kids from life, when we really should be teaching them on how to cope with life and become more resilient.
(Have I mentioned that I like to present in extremes to prove a point?)
#3 - Advice, like youth, probably just wasted on the young.
More commonly known as the "Sunscreen Graduation Speech"
By Mary Schmich of the Chicago Tribune, incorrectly attributed to Kurt Vonnegut.