In The New York Times recently, Pamela Druckerman, author of Bringing up Bébé, shared some lessons she has learned in her 40’s.   Here's what it looks  like at 70-something.

In your 40’s:  Eight hours of continuous unmedicated sleep is one of life’s great pleasures.

In your 70’s:  Never going to happen.

In your 40’s:  Worry less about what people think of you; learn more about them.

In your 70’s:  Worry zero about it; learn even more. 

In your 40’s:  You and your partner know your ritual arguments so well, you can have them in a tenth of the time.

In your 70’s:  You know them so well that you don’t have to have them at all.

In your 40’s:  You know that “nice” isn’t a sufficient quality for a friendship, but it’s a necessary one.

In your 70’s: Now, it’s sufficient.

In your 40’s:  You don’t want to be with the cool people; you want to be with your people

In your 70’s: You are willing to be with anyone who is still breathing.

In your 40’s: Never accept a lunch invitation from people you don’t want to have lunch with.  They will be much less disappointed than you think.

In your 70’s:  Never do anything you don’t want to do.

In your 40’s:  What’s adorable at twenty can be worrisome at thirty and dangerous at forty.

In your 70’s:  It’s forgiven.

In your 40’s:  There are no grownups

In your 70’s:  There still aren’t.

And to the 40-something from a 70-something:  You’ll be writing “What You Learn in Your 70s” sooner than you think.  Enjoy the voyage.