"You are getting old when you get the same sensation from a rocking chair that you once got from a roller coaster."
LMAO. My god that's hilarious
Can be found here
http://www.oneliners-and-proverbs.com/
Point is, getting old is something that won't come as a great shock to anyone, so just start preparing mentally for it and when it comes, it won't be anything you didn't expect.