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• When asked what wine he liked to drink, he replied, "That which belongs to another.
  -- Diogenes Laertius (c. 200 AD) -- Diogenes, vi...
• Bury me on my face," said Diogenes; and when he was asked why, he replied, "Because in a little while everything will be turned upside down.
  -- Diogenes Laertius (c. 200 AD) -- Diogenes, vi...
• When a man reproached him for going into unclean places, he said, "The sun too penetrates into privies, but is not polluted by them.
  -- Diogenes Laertius (c. 200 AD) -- Diogenes, vi...
• Asked from what country he came, he replied, "I am a citizen of the world.
  -- Diogenes Laertius (c. 200 AD) -- Diogenes, vi...
• When asked what learning was the most necessary, he said, "Not to unlearn what you have learned.
  -- Diogenes Laertius (c. 200 AD) -- Antisthenes, iv...
• When Zeno was asked what a friend was, he replied, "Another I.
  -- Diogenes Laertius (c. 200 AD) -- Zeno, xix...
• A man once asked Diogenes what was the proper time for supper, and he made answer, "If you are a rich man, whenever you please
  and if you are a poor man, whenever you can." -- Diogenes Laertius (c. 200 AD) -- Diogenes, vi...
• When Thales was asked what was difficult, he said, "To know one's self.
  And what was easy, "To advise another." -- Diogenes Laertius (c. 200 AD) -- Thales, ix...
• Aristotle was once asked what those who tell lies gain by it.
  Said he, "That when they speak truth they are not believed....