Music rhythms are mathematical patterns. When you hear a song and your body starts moving with it your body is doing math. The kids in their parents' garage practicing to be a band may not realize it but they're also practicing math.
Wrinkles should merely indicate where smiles have been.
Anyone who stops learning is old whether at twenty or eighty. Anyone who...
Age is an issue of mind over matter. If you don't mind it doesn't matter.