Old friends die on you, and they're irreplaceable. You become dependent.

Old friends are best.

Friends die, friends become demented, friends quarrel, friends drift with old age into silence.

It is one of the blessings of old friends that you can afford to be stupid with them.

To be with old friends is very warming and comforting.

My mother enjoyed old age, and because of her I've begun to enjoy parts of it too. So far I've had it good and am crumbling nicely.