Our knowledge is a receding mirage in an expanding desert of ignorance.

• In my youth I stressed freedom, and in my old age I stress order. I have made the great discovery that liberty is a product of order.
• There is nothing in socialism that a little age or a little money will not cure.
• Every science begins as philosophy and ends as art.
• To say nothing, especially when speaking, is half the art of diplomacy.
• We Americans are the best informed people on earth as to the events of the last twenty-four hours we are the not the best informed as the events of the last sixty centuries.
• Civilization exists by geological consent, subject to change without notice.
• Education is a progressive discovery of our own ignorance.
• Education is the transmission of civilization.
• Sixty years ago I knew everything now I know nothing education is a progressive discovery of our own ignorance.
• Moral codes adjust themselves to environmental conditions.