Wrinkles should merely indicate where smiles have been.
Anyone who stops learning is old whether at twenty or eighty. Anyone who keeps learning stays young. The greatest thing in life is to keep your mind young.
Age is an issue of mind over matter. If you don't mind it doesn't matter.
Well may the boldest fear and the wisest tremble when incurring responsibilities on which may depend our country's peace and prosperity and in some degree the hopes and happiness of the whole human family.