It is not by muscle, speed, or physical dexterity that great things are achieved, but by reflection, force of character, and judgement; in these qualities old age is usually not only not poorer, but is even richer.
Cicero: De Senectute De Amicitia De Divinatione. With An English Translation. William Armistead Falconer. Cambridge. Harvard University Press; Cambridge, Mass., London, England. 1923.