A person is not old until regrets take the place of dreams. John Barrymore
A man is not old as long as he is seeking something. Edmond Rostand
Is not old wine wholesomest, old pippins toothsomest, old wood burn brightest, old linen wash whitest? Old soldiers, sweethearts, are surest, and old lovers are soundest. John Webster
An old woman is not old in a song she dances well. Nigerian Proverb
Young twigs may be bent, but not old trees. Dutch Proverb
A man is not old until his regrets take the place of his dreams. Yiddish Proverb