What nobler employment, or more valuable to the state, than that of the man who instructs the rising generation?
Marcus Tullius CiceroEach part of life has its own pleasures. Each has its own abundant harvest, to be garnered in season. We may grow old in body, but we need never grow old in mind and spirit. No one is as old as to think he or she cannot live one more year.
Marcus Tullius CiceroTo reduce man to the duties of his own city, and to disengage him from duties to the members of other cities, is to break the universal society of the human race.
Marcus Tullius Cicero