A good leader can engage in a debate frankly and thoroughly knowing that at the end he and the other side must be closer and thus emerge stronger. You don't have that idea when you are arrogant superficial and uninformed.
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.