I left school at 16 but I wish I'd gone to university - I think I would have studied English literature. I had a knack for that. But I don't think you have the kind of wisdom at 16 to make that decision.
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.