Two qualities are indispensable: first an intellect that even in the darkest hour retains some glimmerings of the inner light which leads to truth and second the courage to follow this faint light wherever it may lead.
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.