As I approve of a youth that has something of the old man in him so I am no less pleased with an old man that has something of the youth. He that follows this rule may be old in body but can never be so in mind.
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.