Old School

"Old School" did not occur widely in American English til I was too old to claim not to personify it.

Old School is my favorite pizzeria.
Old School teaches us how to survive.
Old School emerges in Old Age too wise to be ashamed of oldness.
Old School teaches archaeologists.
Old School rocks like 21st Century kids never will.

"Old School" means whatever my lengthening, fail-prone memory assigns.