I think I shared this one before, one of my favorites comes from Dale Wimbrow, apparently Coach Parcells likes this one too....

"...You can fool the whole world down the pathway of years, And get pats on the back as you pass, But your final reward will be heartaches and tears If you've cheated the man in the glass..."

Another words, look in the mirror and if you don't like what you see, do something about it, or else....lol