I know what I mean but it's hard to explain. The more someone ages, the better they become as a person. There is a phrase ' aging like a fine wine' that springs to mind. That might not be what your idiom is about though.
I guess I mean people are valued and appreciated more for their knowledge and wisdom. More emotionally and spiritually balanced maybe? I don't think this is what you're looking for though.
hahaha Jan Kochanowski wrote that funny poem To the Maiden. staropolska.pl/renesans/jan_kochanowski/fraszki/fraszki_52.html
To a maiden
Lovely maiden, do not run away from me, Thy countenance blushed and my beard that gray be Shall surely agree; for, when one a wreath makes, Together with a rose one a lily takes.
Lovely maiden, do not run away from me, My heart is not old, though my beard may gray be; Even though my beard is gray, I am still strong, Garlic is white where round, and is green where is long.
Do not run, I advice; you know what they tell: An old cat can keep his tail upright and well; An oak, though is dry, though a leaf off it may fall, On a healthy root it will stand strong and tall.
I've heard it used more to describe the people from the wioski who come into money or "wiesniaki" ... usually because of their appearance or their purchasing priorities - i.e. they'll buy a new Mercedes, but not spend money to fix their missing teeth... sloma z butow wystaje...
Pull the rabbit out of the hat? If you do it by its ears, it means you are a sadist coz it is forbidden to carry rabbits by their ears. If you do it by its balls, you are even a bigger sadist, plus a rabbit molester. You is editorial (Rich`s license).