The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of grapes as if it had nothing else in the universe to do.
— Galileo Galilei

Minds ripen at very different ages.
Elizabeth Montagu ripen quote

I don't respond well to mellow, you know what I mean, I have a tendency to... if I get too mellow, I ripen and then rot.
— Woody Allen

Letters are like wine; if they are sound they ripen with keeping. A man should lay down letters as he does a cellar of wine.
— Samuel Butler

It is sad to grow old but nice to ripen.
— ripen quotation by Brigitte Bardot