I wrote somewhere during the Cold War that I sometimes wish the Iron Curtain were much taller than it is so that you could see whether the development of science with no communication was parallel on the two sides. In this case it certainly wasn't.
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.