No one is so old that he cannot live yet another year, nor so young that he cannot die today. Fernando de Rojas
I hope I never get so old I get religious. Ingmar Bergman
No one is so old as those who have outlived enthusiasm. Henry David Thoreau
Age is never so old as youth would measure it. Jack London
No man is so young he cannot teach, or so old he cannot learn. Darkovan Proverb
None so old that he hopes not for a year of life. Romanian Proverb