My joking answer to this question is that I leave a bowl of milk out on the back porch every night for the Idea Fairy. In the morning the milk is gone and there's a brand-new shiny idea by the bowl.
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.