My Aunt lived to be 99-1/2 and a dear friend of mine has just turned 95. Neither one had "sage" wisdom to share BUT my observation of both is that they seemed to have Purpose in their lives.
My Aunt read the Wall Street Journal every day. She knitted, talked to friends on the phone and went out frequently. She would complain that she didn't like to go down to dinner (she lived her final years in a Retirement Community) because once you turned 90, no one wanted to sit with the "Old People!" Too bad - she had traveled and was well read and she had the most amazingly funny stories to share!!
My friend immersed herself in the local Embroidery Guild, after her husband passed away. She still teaches stitching project classes and stays current with new products and techniques. I hope she put my name on at least, one of her framed masterpieces that surround her, filling the walls!
I want to grow up and be either one of them!!