Tough as Nails?

Have you ever thought about the saying tough as nails? I was thinking about it on my way home and decided nails arent very tough. What is so cool about being tough as nails when it only takes a hammer to keep you down. So what's your hammer? Is it work, school, family, girls or guys, yourself, maybe even your ego, what about your lack of education? Bottom line is that nails may hold things together for a time but it doesnt take much to keep them down. Why cant we say tough as a mountain? After all a mountain is tough. It is also ever changing and adapts to changes. Its face never the same yet always beautiful and its not going to move for you. The only way to get past it is to go over it or put a tunnel through it. So I dont know about you but the next time I hear someone say they are "Tough as Nails" I'm going to laugh to myself.